Artificial turf

Artificial turf is a surface of synthetic fibers made to look like natural grass. It is most often used in arenas for sports that were originally or are normally played on grass. However, it is now being used on residential lawns and commercial applications as well. The main reason is maintenance—artificial turf stands up to heavy use, such as in sports, and requires no irrigation or trimming. Domed, covered, and partially covered stadiums may require artificial turf because of the difficulty of getting grass enough sunlight to stay healthy. Artificial turf does have its downside, however: limited life, periodic cleaning requirements, petroleum use, toxic chemicals from infill, and heightened health and safety concerns.

Artificial turf first gained substantial attention 53 years ago in 1966, when it was installed in the year-old Astrodome. The specific product used was "ChemGrass", developed by Monsanto and rebranded as AstroTurf; this term since then became a generic trademark for any artificial turf throughout the late 20th century. AstroTurf remains a registered trademark but is no longer owned by Monsanto.

The first generation turf systems (i.e., short-pile fibers without infill) of the 1960s have been largely replaced by the second generation and third generation turf systems. Second generation synthetic turf systems feature longer fibers and sand infills, and third generation systems, which are most widely used today, offer infills that are mixtures of sand and granules of recycled rubber, or "rubber crumb".

Kunstgress
Artificial turf with rubber crumb infill
Skagerak Arena turf
Side view of artificial turf
Modernartificialgrass2
Diagram of the structure of modern artificial turf
Astroturf
Artificial turf square mats

History

David Chany, who moved to Raleigh, North Carolina, in 1960 and later served as Dean of the North Carolina State University College of Textiles, headed the team of Research Triangle Park researchers who created the first notable artificial turf. That accomplishment led Sports Illustrated to declare Chaney as the man "responsible for indoor major league baseball and millions of welcome mats."

Artificial turf was first installed in 1964 on a recreation area at the Moses Brown School in Providence, Rhode Island.[1] The material came to public prominence in 1966, when AstroTurf was installed in the Astrodome in Houston, Texas.[1] The state-of-the-art indoor stadium had attempted to use natural grass during its initial season in 1965, but this failed miserably and the field conditions were grossly inadequate during the second half of the season, with the dead grass painted green. Due to a limited supply of the new artificial grass, only the infield was installed before the Houston Astros' home opener in April 1966; the outfield was installed in early summer during an extended Astros road trip and first used after the All-Star Break in July.

The use of AstroTurf and similar surfaces became widespread in the U.S. and Canada in the early 1970s, installed in both indoor and outdoor stadiums used for baseball and football. More than 11,000 artificial turf playing fields have been installed nationally.[2] More than 1,200 were installed in the U.S. in 2013 alone, according to the industry group the Synthetic Turf Council.[2]

Maintaining a grass playing surface indoors, while technically possible, is prohibitively expensive. Teams who chose to play on artificial surfaces outdoors did so because of the reduced maintenance cost, especially in colder climates with urban multi-purpose "cookie cutter" stadiums such as Cincinnati's Riverfront Stadium, Pittsburgh's Three Rivers Stadium and Philadelphia's Veterans Stadium.

Sports applications

Baseball

Tropicana field
Tropicana Field is installed with an artificial turf field.
Sunset HS artificial-turf baseball field - Beaverton, Oregon (2016)
An artificial-turf field at a high school in Oregon

Artificial turf was first used in Major League Baseball in the Houston Astrodome in 1966, replacing the grass field used when the stadium opened a year earlier. Even though the grass was specifically bred for indoor use, the dome's semi-transparent Lucite ceiling panels, which had been painted white to cut down on glare that bothered the players, did not pass enough sunlight to support the grass. For most of the 1965 season, the Astros played on green-painted dirt and dead grass.

The solution was to install a new type of artificial grass on the field, ChemGrass, which became known as AstroTurf. Because the supply of AstroTurf was still low, only a limited amount was available for the first home game. There was not enough for the entire outfield, but there was enough to cover the traditional grass portion of the infield. The outfield remained painted dirt until after the All-Star Break. The team was sent on an extended road trip before the break, and on July 19, 1966, the installation of the outfield portion of AstroTurf was completed.

The Chicago White Sox became the first team to install artificial turf in an outdoor stadium, as they used it in the infield and adjacent foul territory at Comiskey Park from 1969 through 1975.[3] Artificial turf was later installed in other new multi-purpose stadiums such as Pittsburgh's Three Rivers Stadium, Philadelphia's Veterans Stadium, and Cincinnati's Riverfront Stadium. Early AstroTurf baseball fields used the traditional all-dirt path, but in the early 1970s, teams began using the "base cutout" layout on the diamond, with the only dirt being on the pitcher's mound, batter's circle, and in a five-sided "sliding box" around each base. With this layout, a painted arc would indicate where the edge of the outfield grass would normally be, to assist fielders in positioning themselves properly. The last stadium in MLB to use this configuration was Rogers Centre in Toronto, when they switched to an all-dirt infield (but keeping the artificial turf) after the 2015 season.[4] The Arizona Diamondbacks switched Chase Field to artificial turf for the 2019 season; the stadium had grass from its opening in 1998 until 2018, but the difficulty of maintaining of grass in the stadium, which has a retractable roof and is located in a desert city, has been cited as the reason for the switch.[5]

Joe Austin Park Qns 35 - Resurfacing
Artificial turf being installed on a baseball field in Queens, New York City.

The biggest difference in play on artificial turf was that the ball bounced higher than on real grass and also traveled faster, causing infielders to play farther back than they would normally so that they would have sufficient time to react. The ball also had a truer bounce than on grass so that on long throws fielders could deliberately bounce the ball in front of the player they were throwing to, with the certainty that it would travel in a straight line and not be deflected to the right or left. However, the biggest impact on the game of "turf", as it came to be called, was on the bodies of the players. The artificial surface, which was generally placed over a concrete base, had much less give to it than a traditional dirt and grass field did, which caused more wear-and-tear on knees, ankles, feet, and the lower back, possibly even shortening the careers of those players who played a significant portion of their games on artificial surfaces. Players also complained that the turf was much hotter than grass, sometimes causing the metal spikes to burn their feet or plastic ones to melt. These factors eventually provoked a number of stadiums, such as the Kansas City Royals' Kauffman Stadium, to switch from artificial turf back to natural grass.

In 2000, Tropicana Field became the first MLB field to use a third-generation artificial surface, FieldTurf. All other remaining artificial turf stadiums were either converted to third-generation surfaces or were replaced entirely by new natural grass stadiums. In a span of 13 years, between 1992 and 2005, the National League went from having half of its teams using artificial turf to all of them playing on natural grass. With the replacement of Minneapolis's Hubert H. Humphrey Metrodome by Target Field in 2010, only two MLB stadiums used artificial turf from 2010 through 2018: Tropicana Field and Toronto's Rogers Centre. In 2019, this number grew to three when Arizona's Chase Field replaced its natural grass surface with artificial turf, and in 2020, the new Globe Life Field in Arlington, Texas will also have an artificial surface.

American/Canadian football

The first professional American football team to play on artificial turf was the Houston Oilers, then part of the American Football League, who moved into the Astrodome in 1968, which had installed AstroTurf two years prior. In 1969, the University of Pennsylvania's Franklin Field in Philadelphia, at the time also home field of the Philadelphia Eagles, switched from grass to AstroTurf, making it the first National Football League stadium to use artificial turf.

In 2002, CenturyLink Field, originally planned to have a natural grass field, was instead surfaced with FieldTurf upon positive reaction from the Seattle Seahawks when they played on the surface at their temporary home of Husky Stadium during the 2000 and 2001 seasons. This would be the first of a leaguewide trend taking place over the next several seasons that would not only result in teams already using artificial surfaces for their fields switching to the new FieldTurf or other similar surfaces but would also see several teams playing on grass adopt a new surface. (The Indianapolis Colts' RCA Dome and the St. Louis Rams' Edward Jones Dome were the last two stadiums in the NFL to replace their first-generation AstroTurf surfaces for next-generation ones after the 2004 season). For example, after a three-year experiment with a natural surface, Giants Stadium went to FieldTurf for 2003, while M&T Bank Stadium added its own artificial surface the same year (it has since been removed and replaced with a natural surface, which the stadium had before installing the turf). Later examples include Paul Brown Stadium, which went from grass to turf in 2004; Gillette Stadium, which made the switch in 2006;[6] and NRG Stadium, which did so in 2015. Today, 12 NFL fields out of 31 are artificial.

The first professional Canadian football stadium to use artificial turf was Empire Stadium in Vancouver, British Columbia, then home of the CFL's BC Lions, which installed 3M TartanTurf in 1970. Today, eight of the nine stadiums in the Canadian Football League currently use artificial turf. The only one that does not is BMO Field in Toronto, which initially had an artificial pitch and has been shared by the CFL's Toronto Argonauts since 2016 (however, part of the endzones at that stadium are covered with artificial turf).[7] The first stadium to use the next-generation surface was Ottawa's Frank Clair Stadium (now TD Place Stadium), which the Ottawa Renegades used when they began play in 2002. The last stadium to replace their first-generation artificial surface for a newer one was the Saskatchewan Roughriders' Taylor Field, which replaced it in 2007; Taylor Field was the only major professional sports venue in North America to use a second-generation artificial playing surface, OmniTurf, which was used from 1988 to 1999[8].

NFL players overwhelmingly prefer natural grass over synthetic surfaces, according to a league survey conducted in 2010. When asked, "Which surface do you think is more likely to shorten your career?", 90% responded artificial turf.[9]

Field hockey

The introduction of synthetic surfaces has significantly changed the sport of field hockey. Since being introduced in the 1970s, competitions in western countries are now mostly played on artificial surfaces. This has increased the speed of the game considerably and changed the shape of hockey sticks to allow for different techniques, such as reverse stick trapping and hitting.

Field hockey artificial turf differs from artificial turf for other sports, in that it does not try to reproduce a grass "feel", being made of shorter fibers. This shorter fiber structure allows the improvement in speed brought by earlier artificial turfs to be retained. This development in the game, however, is problematic for many local communities who often cannot afford to build two artificial fields: one for field hockey and one for other sports. The International Hockey Federation and manufacturers are driving research in order to produce new fields that will be suitable for a variety of sports.

The use of artificial turf in conjunction with changes in the game's rules (e.g., the removal of offside, introduction of rolling substitutes and the self-pass, and to the interpretation of obstruction) have contributed significantly to change the nature of the game, greatly increasing the speed and intensity of play as well as placing far greater demands on the conditioning of the players.

Association football

Aspmyra stadion
Aspmyra, Norway: home of the football club FK Bodø/Glimt

Some association football clubs in Europe installed synthetic surfaces in the 1980s, which were called "plastic pitches" (often derisively) in countries such as England. There, several professional club venues had adopted them; QPR's Loftus Road, Luton Town's Kenilworth Road, Oldham Athletic's Boundary Park and Preston's Deepdale. QPR had been the first team to install an artificial pitch at their stadium in 1981, but were the first to remove it when they did so in 1988. The last Football League team to have an artificial pitch in England was Preston North End, who removed their pitch in 1994 after eight years in use.

Turf gained a bad reputation on both sides of the Atlantic with fans and especially with players. The first-generation artificial turf surfaces were carpet-like in their look and feel, and thusly, a far harder surface than grass and soon became known as an unforgiving playing surface that was prone to cause more injuries, and in particular, more serious joint injuries, than would comparatively be suffered on a grass surface. This turf was also regarded as aesthetically unappealing to many fans.

In 1981, London football club Queens Park Rangers dug up its grass pitch and installed an artificial one. Others followed, and by the mid-1980s there were four artificial surfaces in operation in the English league. They soon became a national joke: the ball pinged round like it was made of rubber, the players kept losing their footing, and anyone who fell over risked carpet burns. Unsurprisingly, fans complained that the football was awful to watch and, one by one, the clubs returned to natural grass.[10]

In the 1990s, many North American soccer clubs also removed their artificial surfaces and re-installed grass, while others moved to new stadiums with state-of-the-art grass surfaces that were designed to withstand cold temperatures where the climate demanded it. The use of artificial turf was later banned by FIFA, UEFA and by many domestic football associations, though, in recent years, both governing bodies have expressed resurrected interest in the use of artificial surfaces in competition, provided that they are FIFA Recommended. UEFA has now been heavily involved in programs to test artificial turf, with tests made in several grounds meeting with FIFA approval. A team of UEFA, FIFA and German company Polytan conducted tests in the Stadion Salzburg Wals-Siezenheim in Salzburg, Austria which had matches played on it in UEFA Euro 2008. It is the second FIFA 2 Star approved artificial turf in a European domestic top flight, after Dutch club Heracles Almelo received the FIFA certificate in August 2005.[11] The tests were approved.[12]

FIFA originally launched its FIFA Quality Concept in February 2001. UEFA announced that starting from the 2005–06 season, approved artificial surfaces were to be permitted in their competitions.

A full international fixture for the 2008 European Championships was played on 17 October 2007 between England and Russia on an artificial surface, which was installed to counteract adverse weather conditions, at the Luzhniki Stadium in Moscow.[13][14] It was one of the first full international games to be played on such a surface approved by both FIFA and UEFA. However, UEFA ordered that the 2008 European Champions League final hosted in the same stadium in May 2008 must take place on grass, so a temporary natural grass field was installed just for the final.

UEFA stressed that artificial turf should only be considered an option where climatic conditions necessitate.[15] One Desso "hybrid grass" product incorporates both natural grass and artificial elements.[16]

In June 2009, following a match played at Estadio Ricardo Saprissa in Costa Rica, American national team manager Bob Bradley called on FIFA to "have some courage" and ban artificial surfaces.

FIFA designated a star system for artificial turf fields that have undergone a series of tests that examine quality and performance based on a two star system.[17] Recommended two-star fields may be used for FIFA Final Round Competitions as well as for UEFA Europa League and Champions League matches.[18] There are currently 130 FIFA Recommended 2-Star installations in the world.[19]

In 2009, FIFA launched the Preferred Producer Initiative to improve the quality of artificial football turf at each stage of the life cycle (manufacturing, installation and maintenance).[20] Currently, there are five manufacturers that were selected by FIFA: Act Global, Limonta, Desso, GreenFields, and Edel Grass. These firms have made quality guarantees directly to FIFA and have agreed to increased research and development.

In 2010, Estadio Omnilife with an artificial turf opened in Guadalajara to be the new home of Chivas, one of the most popular teams in Mexico. The owner of Chivas, Jorge Vergara, defended the reasoning behind using artificial turf because the stadium was designed to be "environment friendly and as such, having grass would result [in] using too much water."[21] However, players harshly criticized the field, saying it caused many injuries as a result of the harder surface. When Johan Cruyff became the adviser of the team, he recommended the switch to natural grass, which the team did in 2012.[22]

In November 2011, it was reported that a number of English football clubs were interested in using artificial pitches again on economic grounds.[23] As of October 2016, artificial pitches are not permitted in the Premier League or Football League but are permitted in the National League and lower divisions. The two most prominent English football clubs to currently use third-generation artificial pitches are Sutton United, whose FIFA 2-Star quality pitch was installed at Gander Green Lane in August 2015, and Maidstone United, whose 2-Star pitch was built along with the new Gallagher Stadium in July 2012.[24] Matches between the two clubs have been named by fans El Plastico (a reference to El Clásico).[25] Artificial pitches are also permitted in all rounds of The FA Cup competition.

2015 Women's World Cup

The Women's World Cup took place entirely on artificial surfaces, as the event was played in Canada, where almost all of the country's stadiums use artificial turf due to climate issues. This plan garnered criticism from players and fans, some believing the artificial surfaces make players more susceptible to injuries. Over fifty of the female athletes protested against the use of artificial turf on the basis of gender discrimination.[26][27]

However Australia winger Caitlin Foord said that after playing 90 minutes there was no difference to her post-match recovery – a view shared by the rest of the squad. The squad spent much time preparing on the surface and had no problems with its use in Winnipeg.

"We've been training on [artificial] turf pretty much all year so I think we're kind of used to it in that way ... I think grass or turf you can still pull up sore after a game so it's definitely about getting the recovery in and getting it right", Foord said.[28]

The 2012 Women's World Player of the Year, Abby Wambach, noted "The men would strike, playing on artificial turf."[29]

The controversial issue of gender equality and an equal playing field for all has sparked debate in many countries around the world. A lawsuit was filed on 1 October 2014 in an Ontario tribunal court by a group of women's international soccer players against FIFA and the Canadian Soccer Association and specifically points out that in 1994 FIFA spent $2 million to plant natural grass over artificial turf in New Jersey and Detroit.[30]

Various celebrities showed their support for the women soccer players in defence of their lawsuit, including actor Tom Hanks, NBA player Kobe Bryant and U.S. men's soccer team keeper Tim Howard. Even with the possibility of boycotts, FIFA's head of women's competitions, Tatjana Haenni, made it clear that "we play on artificial turf and there's no Plan B."[31][32]

Rugby

Rugby also uses artificial surfaces at a professional level. Infill fields are used by English Aviva Premiership teams Saracens F.C., Newcastle Falcons and Worcester Warriors, as well as Pro14 teams Cardiff Blues and Glasgow Warriors. Some fields, including Twickenham Stadium, have incorporated a hybrid field, with grass and synthetic fibers used on the surface. This allows for the field to be much more hard wearing, making it less susceptible to weather conditions and frequent use.

Tennis

Carpet has been used as a surface for indoor tennis courts for decades, though the first carpets used were more similar to home carpets than a synthetic grass. After the introduction of AstroTurf, it came to be used for tennis courts, both indoor and outdoor, though only a small minority of courts use the surface.[33][34] Both infill and non-infill versions are used, and are typically considered medium-fast to fast surfaces under the International Tennis Federation's classification scheme.[33] A distinct form found in tennis is an "artificial clay" surface,[33] which seeks to simulate a clay court by using a very short pile carpet with an infill of the same loose aggregate used for clay courts that rises above the carpet fibers.[33]

Tennis courts such as Wimbledon are considering using an artificial hybrid grass to replace their natural lawn courts. Such systems incorporate synthetic fibres into natural grass to create a more durable surface on which to play.[35] Such hybrid surfaces are currently used for some association football stadiums, including Wembley Stadium.

Golf

Synthetic turf can also be used in the golf industry, such as on golf ranges, putting greens and even in some circumstances tee boxes. Because of the vast areas of golf courses and the damage from clubs during shots, it is not feasible to surface fairways with artificial turf.

Other applications

Landscaping

Artificial grass in the front yard
A home's yard with artificial grass.

Since the early 1990s, the use of synthetic grass in the more arid western states of the United States has moved beyond athletic fields to residential and commercial landscaping.[36]

Airports

Artificial turf has been used at airports.[37] Here it provides several advantages over natural turf – it does not support wildlife, it has high visual contrast with runways in all seasons, it reduces foreign object damage (FOD) since the surface has no rocks or clumps, and it drains well.[38]

Some artificial turf systems allow for the integration of fiber-optic fibers into the turf. This would allow for runway lighting to be embedded in artificial landing surfaces for aircraft (or lighting or advertisements to be directly embedded in a playing surface).[39]

Environmental concerns

Both the rubber granules (often made from recycled waste tires) and the synthetic fibres of artificial turf are subject to wear and can be washed into the environment. Second only to tire and road wear particles (TRWP) that make up a large portion of the fine road debris, the rubber granulate from artificial turf infill constitutes a significant source of rubber pollution.[40] Fragments from the artificial reeds make their way into the environment as microplastics pollution in both marine as well as soil environments.[41][42][43][44][45]

Health and safety

Injuries

A number of health and safety concerns have been raised about artificial turf.[2] Friction between skin and older generations of artificial turf can cause abrasions and/or burns to a much greater extent than natural grass.[46]

Artificial turf tends to retain heat from the sun and can be much hotter than natural grass with prolonged exposure to the sun.[47]

There is some evidence that periodic disinfection of artificial turf is required as pathogens are not broken down by natural processes in the same manner as natural grass. Despite this, a 2006 study suggests certain microbial life is less active in artificial turf.[46]

There is evidence showing higher rates of player injury on artificial turf. In a study performed by the National Football League Injury and Safety Panel, published in the October 2012 issue of the American Journal of Sports Medicine, Elliott B. Hershman et al. reviewed injury data from NFL games played between 2000 and 2009. "...the injury rate of knee sprains as a whole was 22% higher on FieldTurf than on natural grass. While MCL sprains did not occur at a rate significantly higher than on grass, rates of ACL sprains were 67% higher on FieldTurf."[48] Metatarsophalangeal joint sprain, known as "turf toe" when the big toe is involved, is named from the injury being associated with playing sports on rigid surfaces such as artificial turf and is a fairly common injury among professional American football players. Artificial turf is a harder surface than grass and does not have much "give" when forces are placed on it.[49]

Materials used

Some artificial turf uses infill such as silicon sand and/or granulated rubber, referred to as "crumb rubber". Some granulated rubber is made from recycled car tires and may carry heavy metals which can leach into the water table. As early as 2007, a moratorium on the use of ground-up rubber tires in fields and playgrounds was recommended based on health concerns.[50] As of 2013, the EPA called for further studies to monitor the impact of particulate matter from fields and playgrounds that use artificial turf.[2]

See also

References

  1. ^ a b Dave Brady, "It's All So Artificial: The Uncommon Ground", Petersen's 12th Pro Football Annual, 1972. Los Angeles: Petersen Publishing Co., 1972; pp. 62-65.
  2. ^ a b c d Weeks, Jennifer (2015). "Turf Wars". Distillations Magazine. 1 (3): 34–37. Archived from the original on 21 March 2018. Retrieved 22 March 2018.
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  5. ^ "Arizona Diamondbacks installing synthetic grass at Chase Field". azcentral.com. 12 October 2018. Retrieved 13 October 2018.
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  7. ^ "BMO Field: New renovations accommodate TFC, Argos - CBC Sports". Cbc.ca. Archived from the original on 31 January 2017. Retrieved 1 August 2018.
  8. ^ "None". Saskatchewan Roughriders. 12 June 2002. Retrieved 9 May 2019. In 1988, the Roughriders replaced the first artificial turf with a new type of system called OmniTurf. Unlike AstroTurf, OmniTurf was an inlay turf system, which relied on 300 tons of sand to hold it in place (rather than the traditional glued-down system). Over the years, a number of problems occurred with this system and it eventually became necessary to replace it prior to its usable age being reached.
  9. ^ "Archived copy". Archived from the original on 11 January 2015. Retrieved 15 May 2015.CS1 maint: Archived copy as title (link)
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  20. ^ [1] Archived 4 December 2011 at the Wayback Machine
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  22. ^ "El Estadio Omnilife, listo con pasto natural". Mediotiempo.com. Archived from the original on 8 July 2018. Retrieved 1 August 2018.
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  24. ^ "Artificial 3G Pitches: Coming to a ground near you?". Football Ground Guide. Archived from the original on 31 October 2016. Retrieved 30 October 2016.
  25. ^ "The Giraffe, the Pelly & Emily". Gandermonium. Archived from the original on 30 October 2016. Retrieved 30 October 2016.
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  40. ^ Kole, Pieter Jan; Löhr, Ansje J.; Van Belleghem, Frank; Ragas, Ad; Kole, Pieter Jan; Löhr, Ansje J.; Van Belleghem, Frank G. A. J.; Ragas, Ad M. J. (20 October 2017). "Wear and Tear of Tyres: A Stealthy Source of Microplastics in the Environment". International Journal of Environmental Research and Public Health. 14 (10): 1265. doi:10.3390/ijerph14101265. Archived from the original on 29 August 2018. Retrieved 29 August 2018.
  41. ^ "Tire wear foremost source of microplastics". IVL Swedish Environmental Research Institute. 29 March 2016. Archived from the original on 19 April 2017. Retrieved 19 April 2017. researchers have ranked the sources of microplastic particles by size. The amount of microplastic particles emitted by traffic is estimated to 13 500 tonnes per year. Artificial turf ranks as the second largest source of emissions and is responsible for approximately 2300-3900 tonnes per year.
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  45. ^ Cheng H, Hu Y, Reinhard M (2014). "Environmental and health impacts of artificial turf: a review". Environ Sci Technol. 48 (4): 2114–29. doi:10.1021/es4044193. PMID 24467230. The major concerns stem from the infill material that is typically derived from scrap tires. Tire rubber crumb contains a range of organic contaminants and heavy metals that can volatilize into the air and/or leach into the percolating rainwater, thereby posing a potential risk to the environment and human health.
  46. ^ a b "New Penn State Study Debunks Staph Bacteria Scare In Synthetic Turf" (Press release). Penn State College of Agricultural Sciences. 30 August 2006. Archived from the original on 30 August 2006. Retrieved 11 January 2008.
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  49. ^ "Turf Toe-OrthoInfo – AAOS". Orthoinfo.aaos.org. 1 August 2012. Archived from the original on 9 December 2015. Retrieved 24 December 2015.
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1969 Oregon State Beavers football team

The 1969 Oregon State Beavers football team represented Oregon State University during the 1969 college football season. Home games were played on campus in Corvallis at Parker Stadium, with one at Civic Stadium in Portland. Both installed artificial turf prior to the season.Under fifth-year head coach Dee Andros, the Beavers were 6–4 overall and 4–3 in the Pacific-8 Conference (Pac-8). In the Civil War game against Oregon in Eugene, the first on artificial turf, OSU won for the sixth consecutive year.

1971 Orange Bowl

The 1971 Orange Bowl was played the night of January 1 at the Orange Bowl in Miami, Florida. The final major bowl game of the 1970 college football season, it featured the third-ranked Nebraska Cornhuskers, champions of the Big Eight Conference, and the fifth-ranked LSU Tigers, champions of the Southeastern Conference.

Earlier on New Year's Day, the two top-ranked teams lost their bowl games: #1 Texas in the Cotton and #2 Ohio State in the Rose. The Huskers were aware when they took the field that night that they could claim the top ranking in the AP writers poll with a victory. An LSU victory would likely have given Notre Dame the national title.

2016 Thai Division 3 Tournament Eastern Region

2016 Thai Football Division 3 Tournament Eastern Region is the 1st season of the League competition since its establishment in 2016. It is in the fourth tier of the Thai football league system.

Aspmyra Stadion

Aspmyra Stadion is a football stadium in Bodø, Norway. Home of Bodø/Glimt and Grand Bodø, it holds a capacity for 5,635 spectators. The venue has three stands: a modern all-seater with roof, 100 club seats and 15 luxury boxes to the south, an unroofed all-seater to the east and an older grandstand with mixed sitting and standing to the north. The venue has floodlights and artificial turf with under-soil heating. Immediately south of the venue lies Aspmyra kunstgressbane, a training pitch with artificial turf. Aspmyra Stadion has hosted one Norway national football team match, against Iceland in 2002.

The venue opened in 1966 as a municipal multi-purpose stadium which included a running track. Glimt reached the top-flight in 1977, and played Cup Winners' Cup matches in the late 1970s at Aspmyra. The venue had a slight upgrade in 1980, which also saw the laying of all-weather running track and the construction of the training pitch. In 1992, the pitch was resowed, forcing Glimt to play a season in Nordlandshallen, which since has been used twice for Norwegian top division matches. Aspmyra Stadion was sold to Glimt in 1997, followed by the construction of the south and east stands. This involved removing the running track and building commercial and residential properties around the venue. Artificial turf was laid in 2006. After the club received illegal public subsidies in 2008 had to upgrade the venue, it was in 2011 sold back to the municipality.

AstroTurf

AstroTurf is an American subsidiary that produces artificial turf for playing surfaces. The original AstroTurf product was a short-pile synthetic turf. Since the early 2000s, AstroTurf has marketed taller pile systems that use infill materials to better replicate natural turf. The prime reason to incorporate AstroTurf on game fields is to avoid the cost of laying and maintaining natural turf and to maximize hours of usage. In 2016, AstroTurf became a subsidiary of German-based SportGroup, a family of sports surfacing companies, which itself is owned by the investment firm Equistone Partners Europe.

Baseball Heaven

Baseball Heaven (BBH) is a 27-acre baseball complex in Yaphank, New York on Long Island. The complex is located close to Long Island's MacArthur Airport. Baseball Heaven attracts talent from the New England and Mid-Atlantic states. The complex features four ninety foot base path artificial turf fields and three are seventy foot artificial turf fields. Approximately 750,000 people visit Baseball Heaven on an annual basis.

Baza Sportivă Dan Anca

Baza Sportivă Dan Anca, formerly known as Baza Sportivă DROMEX or Baza Sportivă Detunata, is a multi-use stadium in Cluj-Napoca, Romania. The sport base was opened in 2011 on the place of old Baza Sportivă Detunata and it is used mostly for football matches, being the home ground of Universitatea II Cluj. The stadium holds 1,000 people and is also used for Universitatea Cluj's youth center squads matches and trainings. Except of a main ground with a pitch of normal dimensions, covered with artificial turf, the complex contains several other football pitches with grass or artificial turf.

Dragon Park

Dragon Park (Welsh: Parc y Ddraig) is the Wales National Football Development Centre in the city of Newport, South Wales.

The centre is located at the Newport International Sports Village, Lliswerry in the east of Newport near Newport Stadium and the Wales National Velodrome. It was officially opened 20 April 2013 by Michel Platini, President of UEFA. The £5M complex was a joint venture between UEFA, the Football Association of Wales, Sport Wales and Newport City Council.The Centre is intended to develop the Wales under-21, Wales women's and younger age-group squads. The centre includes two grass pitches and one artificial turf pitch. The centre also provides headquarters for the Welsh Football Trust, the game's development body, with analysis suites, sports science laboratories and coach education facilities.

Dælenenga idrettspark

Dælenenga idrettspark is a sports facility located at Grünerløkka in Oslo, Norway. It consists of an artificial turf football pitch, a club house and an indoor ice rink—Grünerhallen. The facilities are owned by the Municipality of Oslo and used and operated by Grüner IL, the local sports club.

The venue opened in 1916 and was originally used for football, athletics and speed skating. The club house was completed in 1928 and has since been used for martial arts. From 1929, a velodrome course was installed, which remained in use until 1940. During the 1930s, the venue was the main Oslo stadium for the Workers' Sports Federation (AIF). A speedway course was installed in 1947 and remained in use until 1968. The venue featured eight ice hockey matches and two bandy matches during the 1952 Winter Olympics. Artificial ice was laid in 1985 and the skating hall opened in 1995, two years before the artificial turf was laid.

FieldTurf

FieldTurf is a brand of artificial turf playing surface. It is manufactured and installed by FieldTurf Tarkett, a division of French company Tarkett Inc. FieldTurf is headquartered in Montreal, Quebec, Canada, and its primary manufacturing facility is located in Calhoun, Georgia, United States. With a design intended to more accurately replicate real grass, the new product gained rapid popularity in the late 1990s, and changed the industry.

Football pitch

A football pitch (also known as a football field or soccer field) is the playing surface for the game of association football. Its dimensions and markings are defined by Law 1 of the Laws of the Game, "The Field of Play". The surface can either be natural or artificial. Artificial surfaces must be green in colour. The pitch is typically made of turf (grass) or artificial turf, although amateur and recreational teams often play on dirt fields.

All line markings on the pitch form part of the area which they define. For example, a ball on or above the touchline is still on the field of play, and a foul committed over the line bounding the penalty area results in a penalty. Therefore, a ball must completely cross the touchline to be out of play, and a ball must wholly cross the goal line (between the goal posts) before a goal is scored; if any part of the ball is still on or above the line, the ball is still in play.

The field descriptions that apply to adult matches are described below. Note that due to the original formulation of the Laws in England and the early supremacy of the four British football associations within IFAB, the standard dimensions of a football pitch were originally expressed in imperial units. The Laws now express dimensions with approximate metric equivalents (followed by traditional units in brackets), but use of the imperial units remains common in some countries, especially in the United Kingdom.

List of Canadian Football League stadiums

The following is a list of stadiums in the Canadian Football League.

Nuuk Stadium

Nuuk Stadium is a multi-purpose stadium in Nuuk, Greenland. It is currently used mostly for football matches. The stadium has a capacity for 2,000.

FIFA 2-star artificial turf was installed at the stadium in July 2016. The 2-star rating is the highest achievable rating for an artificial surface and is suitable for all UEFA competitions.

Polman Stadion

The Polman Stadion is a multi-use stadium in Almelo, Netherlands. It is currently used mostly for football matches. The stadium has a capacity of 13,500 spectators and was built in 1999. It is the official stadium of Eredivisie side Heracles Almelo. Its pitch is made from artificial turf.

The stadium was opened on 10 September 1999 followed by the opening match against FC Zwolle. Heracles player Job ten Thije scored the first goal in the Polman Stadium. In 2005 the capacity of the stadium was expanded from 6,900 to 8,500 seats of which 400 are available for the supporters of the visiting team. In 2015 the capacity was expanded to 12,080 seats.

Stadionul Municipal (Odorheiu Secuiesc)

Stadionul Municipal is a multi-use stadium in Odorheiu Secuiesc, Romania. It is used mostly for football matches and is the home ground of AFC Odorheiu Secuiesc and Vasas Femina FC. The stadium holds 5,000 people and the sports complex also benefits of a second ground with a pitch of normal dimensions, covered by artificial turf.

Stadionul Victoria Someșeni

Stadionul Victoria Someșeni, also known as Baza Sportivă Ardealul, is a multi-use stadium in Cluj-Napoca, Romania. It is used mostly for football matches and is the home ground of Ardealul Cluj Football Academy, Olimpia Cluj and Sănătatea Cluj. The stadium holds 1,300 people (1,000 on the main stand and 300 on the stand of the artificial turf). It was renovated in 2009, when was also expanded with the 300 people stand and the artificial turf.

Telia 5G -areena

The Telia 5G -areena (named Sonera Stadium until April 2017, and Finnair Stadium until August 2010; also known as Töölön jalkapallostadion, "Töölö football stadium") is a football stadium in Helsinki, Finland. It is named after the Telia Company.

The stadium was inaugurated in 2000. It has a capacity of 10,770 spectators. Originally the ground had a natural grass pitch, but it was soon replaced with an artificial one because the grass couldn't get enough sun light. Since then the stadium has seen numerous artificial playing surfaces that have been gradually replaced. The most recent artificial pitch was installed in April 2015.

The ground is located next to the Helsinki Olympic Stadium. Before the current stadium was constructed, it was known as the Helsinki Football Ground and hosted some of the football preliminaries for the 1952 Summer Olympics.

It is the home stadium of HJK, HIFK, and is also used for some friendlies by the Finnish national team. It hosted the 2003 FIFA U-17 World Championship as Töölö Stadium.

The stadium was named as one of the stadiums that host the 2009 UEFA Women's Championship. For that tournament, the artificial turf covering the field was temporarily replaced with grass.

In the 2016 domestic league season, tenants HJK Helsinki drew the highest average home attendance (5,101).

Trees Field

Trees Field is a facility consisting of athletic fields located at the upper campus of the University of Pittsburgh located in Pittsburgh, Pennsylvania. The facility contained both a baseball and softball fields, which were often individually referred to as "Trees Field", as well as two adjacent artificial turf practice fields.

Prior to the opening of the Petersen Sports Complex in 2010, the baseball and softball stadiums served as the home fields of the university's Panthers college baseball and softball teams and had listed capacities of 500 spectators. Prior to 1999, Tree Field had undergone greater than $500,000 in renovations that included the installation of an AstroTurf infield, lights, and the two AstroTurf practice fields. Although they still exist, it is planned that baseball and softball fields will serve as the site of a new track and field facility.The adjacent 1.5 acre athletic field had artificial turf that was lined for two regulation flag football fields installed in 1999. The fields are utilized as multi-purpose areas for intramural sports, club sports, as practice space for the Pitt Band.

Zvezda Stadium

Star (Zvezda) Stadium (Russian: «Звезда»), until 1991 Lenin Komsomol Stadium (Russian: стадион имени Ленинского комсомола), is a multi-use stadium in Perm, Russia. It is currently used mostly for football matches and is the home ground of FC Amkar Perm. The stadium holds 17,000 people and was opened on June 5, 1969.

The field was covered with artificial turf in 2005.

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