Formation (American football)

A formation in football refers to the position players line up in before the start of a down. There are both offensive and defensive formations and there are many formations in both categories. Sometimes, formations are referred to as packages.


At the highest level of play in the NFL and NCAA, the one constant in all formations is the offensive line, consisting of the left and right tackle, left and right guard, and a center. These five positions are often referred to collectively as the "line", and have the primary role of blocking. By rule there must be two additional players on the line of scrimmage called ends. These players are eligible receivers and may play near the linemen (tight ends) or farther away (split end or wide receiver). Most teams play additional players near (but still off) the line of scrimmage to act as extra pass receivers.

Offensive positions

Up to four players can be behind the offensive line, but one is always designated the quarterback (defined as the player who receives the ball from the center). Upon the snap of the ball, the quarterback becomes the ball carrier. The ball carrier has five options:

  • He may keep the ball and run with it.
  • He may hand or pitch the ball sideways or backwards (also called a lateral) to another player, who then becomes the new ball carrier. Multiple pitches are permitted on a single play, as long as all of them go backwards.
  • He may throw a forward pass to an eligible receiver, who then becomes the new ball carrier. Only 1 forward pass is permitted per play. The pass must be thrown from behind the original line of scrimmage, while the receiver can be anywhere on the field. A pass to a receiver who is also behind the line of scrimmage is still a forward pass as long as the pass travels forward. A forward pass is distinct from a pitch, and any number of pitches are permitted before or after a forward pass.
  • He may hold the ball for a place-kicker who attempts a field goal.
  • He may kick the ball himself, either by punting the ball to the other team, or by attempting a drop-kicked field goal (which is rare).

The three other backs can be halfbacks, (who primarily carry the ball), fullbacks, (who primarily block), or they can play near (but not on) the line of scrimmage to act as extra tight ends or wide receivers. A tight end that fills the role as the 4th back is often called an "H-Back" and a wide receiver that fills that role is sometimes known as a "flanker" or a "slot" receiver (depending on where he lines up). Most formations have a "strong" side (the side with the tight end, or the side with more players) and a "weak side" (the side opposite the tight end, or the side with fewer players).

The ends, which may be either wide receivers, or tight ends, may catch a passed ball or receive a handoff.

Descriptions and diagrams to display offensive formations typically use the following symbols:

  • QB = quarterback (the player who leads and informs the offense the plays)
  • C = center (the player who begins the play with a snap on the line and blocks afterwards)
  • G = guard (the player who blocks on line beside the center)
  • T = tackle (the player who blocks on the line beside the guard)
  • TE = tight end (the player who often goes out for passes and often blocks on the line)
  • WR = wide receiver (the player who gets assigned a route and has to catch the ball when passed to)
  • HB = halfback (the primary ball carrier)
  • FB = fullback (the secondary ball carrier also used for blocking)


The offense is required to set up a formation before a play, subject to several rules:

  • The formation must have at least 7 players on the line of scrimmage.[1] The 7 players are not required to be next to each other, so they may spread out across the width of the field, but this is rare; most offenses place at least 5 players together in a continuous line. Teams may place more than 7 players on the line, but only the player at each end of the line may be an eligible receiver, so generally this only occurs with the special formations used in kicking and punting situations.
  • The other players not on the line (usually 4 in number) may be positioned anywhere, but all must be at least 1 yard behind the 7 or more players on the line of scrimmage.[1] The traditional saying is "7 on the line, 4 in the backfield" but this is something of a misnomer, as "backfield" usually refers to the area directly behind the offensive line. 3 of the 4 "backfield" players (i.e., the 3 not receiving the snap from center) may line up as wide receivers as long as they are behind the line of scrimmage; these are known as slot receivers if between the ends, and flankers if outside the ends.
  • Of the 7 (or more) players on the line of scrimmage, all except those at either end of the line are ineligible receivers: these players may not touch or catch a forward pass[2] (unless it is first touched by an eligible receiver, including a deflection by a defensive player), and on a forward pass play, they may not advance downfield (i.e., across the neutral zone) before the pass crosses the neutral zone. Ineligible receivers may advance freely on a running play or after a pass is thrown. These players typically have uniform numbers in the range 50-79 to indicate they are ineligible.
  • In the NFL, players with numbers 50-79 are considered ineligible by default. They must report to the referee if they line up in a position which would normally be considered eligible; failure to do so will result in a penalty to the offense.[3] The referee will relay that information to the defensive captain,[1] and he will generally announce it to spectators as well. After reporting as eligible, those players may line up at any legal position just as if they were normally eligible receivers. Offenses sometimes use this tactic in a short yardage situation to provide extra blocking, and some plays are even designed for a designated player (i.e.: with numbers 50-79) to receive a pass.
  • In high school (NFHS) numbers 50-79 are always ineligible, and may not receive. In fact if one of these players bats, muffs, or catches a legal forward pass before it is touched by a defensive player, it is a penalty for illegal touching (5 yards plus loss of down). Typically you must have 5 players numbered 50-79 on the line of scrimmage, but there are exceptions to this rule when the offense is lined up in scrimmage kick formation (punt or field goal).
  • The offense must set before the play: all players must take their positions and remain motionless for at least 1 second before the ball is snapped.[1] Typically, after the offense breaks the huddle and walks to the line, the quarterback will call "set" and then begin his regular snap count. The offense is allowed to shift in certain situations and reorganize, but they must again set once they assume new positions. Once set, offensive players may not move until the snap and may not flinch to simulate a snap (with the exception of the man in motion, described below). A violation is a false start penalty.
  • The offense may put one of the 4 backfield players in motion after the set but before the snap. The motion must be either parallel to or (if in the backfield) away from the line of scrimmage at the snap;[1] certain types of football such as arena football allow forward motion at the snap. In Canadian football, all of the players in the backfield can be in motion, in any direction, at the time of the snap, as long as they have not crossed the line of scrimmage before the snap.


Two terms often heard in referring to defensive formations are box and secondary. The box is defined as an area on the defensive side of the ball, within 5 yards of the line of scrimmage and framed by the offensive tackles. This area is most commonly occupied by defensive linemen and linebackers. The secondary can refer to the defensive backs as a group, or to the area behind the linebackers usually occupied by defensive backs. The two standard NFL defenses, the 4-3 and the 3-4, have 7 players in the box. The phrase "8 in the box" is used to indicate that 1 of the 2 safeties has moved into the box to defend against the run.

Defensive positions

The three basic defensive positions are:

  • Defensive lineman (DL): Linemen play at the line of scrimmage, directly across from the offensive line. They are categorized as defensive tackles (DT) or defensive ends (DE). The 4-3 defense has 2 tackles and 2 ends; the 3-4 defense has 2 ends and 1 tackle, who is sometimes called a nose tackle (NT) to indicate the 3-4. Tackles line up inside and rely on power to stop the run, while ends line up outside and are faster and more athletic to allow them to pursue the quarterback.
  • Linebacker (LB): Linebackers are positioned 2 to 4 yards behind the defensive line. The 4-3 defense has 3 linebackers, who are categorized as strong, middle and weak (SLB, MLB, WLB; also called Sam, Mike and Will). This is not an indication of strength; it instead refers to the positioning of the linebackers relative to the offense. Strong linebackers line up on the same side as the tight end, weak side away from the tight end. A 3-4 defense will use 4 linebackers, who are indicated by their side (right/left) and positioning (inside/outside).
  • Defensive back (DB): Defensive backs can include cornerbacks (CB), a strong safety (SS, lines up on same side as tight end) and a free safety (FS, so called because they are "free" to roam where needed). Cornerbacks are almost always responsible for defending against the pass, and particularly against wide receivers; often they are the fastest defensive players. Safeties also defend against the pass, matching up on tight ends and backs, but they are positioned in the center of the field to be prepared to stop the run as well.


Rules regarding defensive formations are not as complex or strict as their offensive counterparts. The defense may line up anywhere on its side of the neutral zone, and players are free to move at any time before the snap, but all defensive players must remain on their side of the neutral zone (defined as the length of the ball) before the snap. If they line up on the wrong side of the line, the offending players are offside. The exception is during a field goal attempt, PAT, or punt. The defense is only allowed a maximum of 6 players on the line of scrimmage on either side of the snapper at the snap. Having 7 or more players on the line on one side will result in an illegal formation penalty. The standard defensive formations in use at most levels of American football are the result of decades of experimentation, trial and error, along with rule changes in the 1950s that eliminated the one-platoon system and gave greater prominence to lighter, faster linebackers (prior to the 1950s, most defensive formations were mirror images of those used on offense).

The box
A defensive formation with the "box" highlighted.

This formation assumes the offense is lined up strong side right (from the offense's point of view). This diagram could be matched up to an offensive formation diagram to make a complete 22 player football field.

See also


  1. ^ a b c d e "NFL Rules Digest: Positioning of Players at Snap".
  2. ^ "NFL Rules Digest: Forward Pass".
  3. ^ "NFL Rules Digest: Summary of Penalties".

External links

Positions in American football and Canadian football
Offense (Skill position) Defense Special teams
Linemen Guard, Tackle, Center Linemen Tackle, End Kicking players Placekicker, Punter, Kickoff specialist
Quarterback (Dual-threat, Game manager, System) Linebacker Snapping Long snapper, Holder
Backs Halfback/Tailback (Triple-threat), Fullback, H-back, Wingback Backs Cornerback, Safety, Halfback, Nickelback, Dimeback Returning Punt returner, Kick returner, Jammer, Upman
Receivers Wide receiver (Eligible), Tight end, Slotback, End Tackling Gunner, Upback, Utility
Formations (List)NomenclatureStrategy
American football strategy

Strategy forms a major part of the game of American football, and both teams plan many aspects of their plays (offense) and response to plays (defense), such as what formations they take, who they put on the field, and the roles and instructions each player are given. Throughout a game, each team adapts to the other's apparent strengths and weaknesses, trying various approaches to outmaneuver or overpower their opponent to score more points in order to win the game.

Defensive coordinator

A defensive coordinator is a coach responsible for a gridiron football (American football) team's defense. Generally, the defensive coordinator and the offensive coordinator represent the second level of a team's command structure, with the head coach being the first level. The primary role of the defensive coordinator is managing the roster of defensive players, overseeing the assistant coaches, developing the defensive game plan, and calling plays for the defense during the game. The defensive coordinator typically manages multiple assistant coaches, each of whom are responsible for various defensive positions on the team (such as the defensive line, linebackers, or defensive backs).While the job of defensive coordinator is largely similar at the collegiate and professional level, college coaches are more involved in the recruitment process. A successful defensive coordinator is often a stepping stone to the position of head coach.

Other major sports with strong delineation between offensive and defensive positions use similar coaching positions. For example: Phil Housley served as a defensive coordinator for the National Hockey League's Nashville Predators from 2013 to 2017.

Eight-man football defensive formations

There are several

defensive formations commonly used in eight-man football. Defensive formations are classified by the total number of linemen and linebackers in the formation. The three basic types of formations in eight-man football are seven-man fronts, six-man fronts and five-man fronts.

As in 11-man football, formations are described in a (number of defensive linemen)-(number of linebackers)-(number of defensive backs) format.

Glossary of American football

The following terms are used in American football, both conventional and indoor. Some of these terms are also in use in Canadian football; for a list of terms unique to that code, see Glossary of Canadian football.

List of formations in American football

The following is a list of common and historically significant formations in American football. In football, the formation describes how the players in a team are positioned on the field. Many variations are possible on both sides of the ball, depending on the strategy being employed. On offense, the formation must include at least seven players on the line of scrimmage, including a center to start the play by snapping the ball.

There are no restrictions on the arrangement of defensive players, and, as such, the number of defensive players on the line of scrimmage varies by formation.

Oklahoma City Stars

The Oklahoma City Stars are the athletic teams that represent Oklahoma City University, located in Oklahoma City, in the U.S. state of Oklahoma. The university fields 17 varsity sports teams, and these teams compete in the NAIA and the Sooner Athletic Conference in all sports except women's wrestling which competes in the Women's College Wrestling Association.

Until 1985, the Stars competed in the NCAA Division I Horizon League, which was known as the Midwestern City Conference at that time.

Punt (gridiron football)

In American and Canadian football, a punt is a kick performed by dropping the ball from the hands and then kicking the ball before it hits the ground. The most common use of this tactic is to punt the ball downfield to the opposing team, usually on the final down, with the hope of giving the receiving team a field position that is more advantageous to the kicking team when possession changes. The result of a typical punt, barring any penalties or extraordinary circumstances, is a first down for the receiving team. A punt is not to be confused with a drop kick, a kick after the ball hits the ground, now rare in both American and Canadian football.

The type of punt leads to different motion of the football. Alex Moffat invented the now-common spiral punt, as opposed to end-over-end.

Offensive strategy
Defensive strategy
Offensive formations
Defensive formations

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