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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.
This list is not exhaustive; there are hundreds of different ways to organize a team's players while still remaining within the "7 on the line 4 in the backfield" convention. Still, this list of formations covers enough of the basics that almost every formation can be considered a variant of the ones listed below.
The T formation is the precursor to most modern formations in that it places the quarterback directly under center (in contrast to its main competitor of its day, the single wing, which had the quarterback receiving the ball on the fly).
It consists of three running backs lined up abreast about five yards behind the quarterback, forming the shape of a T. It may feature two tight ends (known as the Power T) or one tight end and a wide receiver (in this case known as a split end). When legendary coach George Halas' Chicago Bears used the T-formation to defeat the Washington Redskins by a score of 73–0 in the 1940 NFL championship game, it marked the end of the single wing at nearly all levels of play, as teams, over the course of the 1940s, moved to formations with the quarterback "under center" like the T. George Halas is credited with perfecting the T formation.
One variation of the T Formation would be where all the running backs would be closer than usual, being at fullback depth rather than halfback depth. Another variation of the "balanced T" formation is the so-called "unbalanced T" formation. In this configuration the line of scrimmage has an end and tackle left of center, while to the right of the center are two guards, a tackle, and an end. This creates a line that is weighted toward the right of the center. With the backfield lining up in the conventional T formation behind the center (quarterback, two halfbacks and fullback), the resulting configuration is "unbalanced" due to the asymmetry of the placement of the linemen. The "split T" spreads the offensive line out over almost twice as much ground compared to the conventional T formation. This causes the defensive line to also spread out, creating gaps the offense can exploit.
This was once one of the most common formations used at all levels of football, though it has been superseded over the past decade or so by formations that put the quarterback in the shotgun formation. "The I" consists of two backs lined up behind the quarterback, with the back closest to the quarterback being called the fullback and the back behind the fullback called the running back, tailback, or I-back. The two backs line up either in a line (hence the name of the formation since it looks like a letter I) or with the fullback "offset" to either side. The fourth back is most commonly employed as an extra wide receiver. Here are three diagrams of I-Formation, strong side right (that is, with the tight end lining up to the right, typical for a right-handed quarterback). Notice that the 4th back required by the rules is the set-back wide receiver at the right (called the flanker).
Two other I formation variations include the Maryland I and the Power I. These formations lack a flanker, and use the maximum 3 running backs rather than the standard 2. They are used primarily as running formations, often in goal line situations. These may employ either tight ends or split ends (wide receivers) or one of each. The Maryland I was developed by Maryland head coach Tom Nugent. More recently, Utah has utilized this formation with quarterback Brian Johnson.
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List of formations in American football AI simulator
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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.
This list is not exhaustive; there are hundreds of different ways to organize a team's players while still remaining within the "7 on the line 4 in the backfield" convention. Still, this list of formations covers enough of the basics that almost every formation can be considered a variant of the ones listed below.
The T formation is the precursor to most modern formations in that it places the quarterback directly under center (in contrast to its main competitor of its day, the single wing, which had the quarterback receiving the ball on the fly).
It consists of three running backs lined up abreast about five yards behind the quarterback, forming the shape of a T. It may feature two tight ends (known as the Power T) or one tight end and a wide receiver (in this case known as a split end). When legendary coach George Halas' Chicago Bears used the T-formation to defeat the Washington Redskins by a score of 73–0 in the 1940 NFL championship game, it marked the end of the single wing at nearly all levels of play, as teams, over the course of the 1940s, moved to formations with the quarterback "under center" like the T. George Halas is credited with perfecting the T formation.
One variation of the T Formation would be where all the running backs would be closer than usual, being at fullback depth rather than halfback depth. Another variation of the "balanced T" formation is the so-called "unbalanced T" formation. In this configuration the line of scrimmage has an end and tackle left of center, while to the right of the center are two guards, a tackle, and an end. This creates a line that is weighted toward the right of the center. With the backfield lining up in the conventional T formation behind the center (quarterback, two halfbacks and fullback), the resulting configuration is "unbalanced" due to the asymmetry of the placement of the linemen. The "split T" spreads the offensive line out over almost twice as much ground compared to the conventional T formation. This causes the defensive line to also spread out, creating gaps the offense can exploit.
This was once one of the most common formations used at all levels of football, though it has been superseded over the past decade or so by formations that put the quarterback in the shotgun formation. "The I" consists of two backs lined up behind the quarterback, with the back closest to the quarterback being called the fullback and the back behind the fullback called the running back, tailback, or I-back. The two backs line up either in a line (hence the name of the formation since it looks like a letter I) or with the fullback "offset" to either side. The fourth back is most commonly employed as an extra wide receiver. Here are three diagrams of I-Formation, strong side right (that is, with the tight end lining up to the right, typical for a right-handed quarterback). Notice that the 4th back required by the rules is the set-back wide receiver at the right (called the flanker).
Two other I formation variations include the Maryland I and the Power I. These formations lack a flanker, and use the maximum 3 running backs rather than the standard 2. They are used primarily as running formations, often in goal line situations. These may employ either tight ends or split ends (wide receivers) or one of each. The Maryland I was developed by Maryland head coach Tom Nugent. More recently, Utah has utilized this formation with quarterback Brian Johnson.