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  2. 1st & Ten (graphics system) - Wikipedia

    en.wikipedia.org/wiki/1st_&_Ten_(graphics_system)

    The 1st and Ten line displays the yard line needed for a first down during an ESPN Sunday Night Football broadcast.. 1st & Ten is a computer system that augments televised coverage of American football by inserting graphical elements on the field of play as if they were physically present; the inserted element stays fixed within the coordinates of the playing field and obeys the visual rules ...

  3. American football field - Wikipedia

    en.wikipedia.org/wiki/American_football_field

    Diagram of a modern American football field. Diagram of an early 20th century version of an American football field. The rectangular field of play used for American football games measures 100 yards (91.44 m) long between the goal lines, and 160 feet (48.8 m) (53.3 yards) wide. The field may be made of grass or artificial turf. In addition ...

  4. List of gridiron football rules - Wikipedia

    en.wikipedia.org/wiki/List_of_gridiron_football...

    A standard football game consists of four 15-minute quarters (12-minute quarters in high-school football and often shorter at lower levels, usually one minute per grade [e.g. 9-minute quarters for freshman games]), [6] with a 12-minute half-time intermission (30 minutes in the Super Bowl) after the second quarter in the NFL (college halftimes are 20 minutes; in high school the interval is 15 ...

  5. Goal line (gridiron football) - Wikipedia

    en.wikipedia.org/wiki/Goal_line_(gridiron_football)

    The goal line is the chalked or painted line dividing the end zone from the field of play in gridiron football. In American football the goal lines run 10 yards (9.1 m) parallel to the end lines, while in Canadian football they run 20 yards (18 m) parallel to the dead lines. In both football codes the distance is measured from the inside edge ...

  6. List of formations in American football - Wikipedia

    en.wikipedia.org/wiki/List_of_formations_in...

    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.

  7. American football positions - Wikipedia

    en.wikipedia.org/wiki/American_football_positions

    In American football, the specific role that a player takes on the field is referred to as their "position". Under the modern rules of American football, both teams are allowed 11 players [1] on the field at one time and have "unlimited free substitutions", meaning that they may change any number of players during any "dead ball" situation.

  8. Football field - Wikipedia

    en.wikipedia.org/wiki/Football_field

    Football field or football pitch may refer to the playing areas of several codes of football: American football field; Australian rules football playing field;

  9. Route (gridiron football) - Wikipedia

    en.wikipedia.org/wiki/Route_(gridiron_football)

    A route tree for a receiver on the left side of the offense. A route is a pattern or path that a receiver in gridiron football runs to get open for a forward pass. [1] Routes are usually run by wide receivers, running backs and tight ends, but other positions can act as a receiver given the play.