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  2. List of gridiron football rules - Wikipedia

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

    The Canadian football field is 110 yards (100 m) long and 65 yards (59 m) wide with end zones 20 yards (18 m) deep. At each goal line is a set of 40-foot-high (12 m) goalposts, which consist of two uprights joined by a 18.5-foot-long (5.6 m) crossbar which is 10 feet (3.0 m) above the goal line. The goalposts may be H-shaped (both posts fixed ...

  3. Two-point conversion - Wikipedia

    en.wikipedia.org/wiki/Two-point_conversion

    In gridiron football, a two-point conversion, two-point convert, or two-point attempt is a play a team attempts instead of kicking a one-point conversion immediately after it scores a touchdown. In a two-point conversion attempt, the team that just scored must run a play from scrimmage close to the opponent's goal line and advance the ball ...

  4. Conversion (gridiron football) - Wikipedia

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

    A typical lineup for an extra point, from the pre-2015 distance, in a 2007 NFL game between the New England Patriots and the Cleveland Browns. The conversion, try (American football), also known as a point(s) after touchdown, PAT, extra point, two-point conversion, or convert (Canadian football) is a gridiron football play that occurs immediately after a touchdown.

  5. Spike (gridiron football) - Wikipedia

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

    A spike can only be legally performed when the passer is under center, performs the spike immediately after the snap in a single continuous movement, and when the game clock is running. Spiking at any other point while the ball is live is always intentional grounding regardless of pressure or location; this is called a delayed spike .

  6. Touchdown celebration - Wikipedia

    en.wikipedia.org/wiki/Touchdown_celebration

    College football, governed by the NCAA also penalizes excessive celebrations with a 15-yard penalty. NCAA Football Rule 9-2, Article 1(a)(1)(d) prohibits "Any delayed, excessive, prolonged or choreographed act by which a player (or players) attempts to focus attention upon himself (or themselves)"; in addition, Rule 9-2, Article 1(a)(2) asserts that "After a score or any other play, the player ...

  7. Passer rating - Wikipedia

    en.wikipedia.org/wiki/Passer_rating

    Passer rating (also known as passing efficiency in college football) is a measure of the performance of passers, primarily quarterbacks, in gridiron football. [1] There are two formulas currently in use: one used by both the National Football League (NFL) and Canadian Football League (CFL), and the other used in NCAA football.

  8. Help:Convert - Wikipedia

    en.wikipedia.org/wiki/Help:Convert

    By default, the output value is rounded to adjust its precision to match that of the input. An input such as 1234 is interpreted as 1234 ± 0.5, while 1200 is interpreted as 1200 ± 50, and the output value is displayed accordingly, taking into account the scale factor used in the conversion.

  9. All-purpose yardage - Wikipedia

    en.wikipedia.org/wiki/All-purpose_yardage

    All-purpose yards or all-purpose yardage is a gridiron football statistical measure. It is virtually the same as the statistic that some football leagues refer to as combined net yards. [1] In the game of football, progress is measured by advancing the football towards the opposing team's goal line.