In American football and Canadian Football, a two-point conversion is an extra point attempt where a team that has just scored a touchdown starts a play at the opponent's two-yard line and tries to cross the goal line. If the team succeeds they earn an additional two points on top of the six points for the touchdown.
In Canadian football, an intercepted two-point attempt, or one otherwise recovered by the defense, can be returned to the other end zone to give the defensive team two points. Although rare because of the infrequent use of the two-point conversion and because of the difficulty in returning the ball the full length of the field, this has proven the winning margin in football games before. The National Football League does not allow this, and a two-point attempt recovered by the defense is merely 'no good'.
Points can be scored in a variety of ways, including carrying the ball over the goal line, throwing the ball to another player past the goal line or kicking it through the goal posts.
In collegiate and professional leagues, the extra point is usually preferred; its success rate is 94% in the NFL and 93.8% in the NCAA, compared to 43% in the NFL and 43.5% in the NCAA for two-point conversions.
The offensive line (OL) consists of five players (two offensive tackles (OT), two guards (G), and a center (C)) whose job is to protect the passer and clear the way for runners by blocking members of the defense.
In American football and Canadian football, a team may try to score a two-point conversion (score twopoints) instead of an extra point (one point) immediately after they score a touchdown.
In a two-point conversion attempt, the team that just scored must run a play from the opponent's 3-yard line (or the 2-yard line in professional football) and try to advance the ball across the goal line as if it was a normal touchdown on fourth down.
Although rare because of the infrequent use of the two-point conversion and because of the difficulty in returning the ball the full length of the field, this has proven the winning margin in football games.