College overtime rules:
In college (beginning with the 1996 season) and high school football, as well as the Canadian Football League, an overtime procedure is used to determine the winner. This method is sometimes referred to as a "Kansas Playoff," or "Kansas Plan" because of its origins for high school football in that state. A brief summary of the rules:
- A coin toss determines which side shall attempt to score first, and at which end zone the scores shall be attempted.
- Each team in turn will receive one possession (similar to innings in baseball), starting with first-and-10 from a fixed point on the opponent's side of the field:
- In college football, the possession begins at the opponent's 25-yard line.
- In high school football, the ball begins at the 10-yard line, with the option for state high school associations to use different yardage (such as the 15, 20, or 25-yard line)
- In the CFL, where a single point can be scored on a punt, the 35-yard line is used.
- The game clock does not run during overtime; the play clock, however, is enforced.
- A team's possession ends when it scores (touchdown or field goal), misses a field goal, or turns over the ball (either on downs or by the defense otherwise gaining possession). As usual, a touchdown by the offense is followed by a try for one or two points. In NCAA football, starting in triple overtime, teams must attempt a two-point conversion after a touchdown. Since 2010, CFL teams must also attempt the two-point conversion after any touchdown in overtime.
- In college football the defense may score a touchdown on a play on which it gains possession by turnover; such a play will satisfy the condition of each team having a possession and will therefore end the game. In high school football, the defense is generally not allowed to score if it gains possession, although the Oregon School Activities Association adopted the college rule experimentally in 2005, and the University Interscholastic League of Texas, the Texas Association of Private and Parochial Schools, and the Massachusetts Interscholastic Athletic Association use NCAA football rules. If scoring is not allowed or the turnover play does not end with a score, regardless of the eventual position of the ball at the end of the play, the team assumes offense and will begin their procedure from the specified position on the field.
- Each team receives one charged time-out per overtime procedure (except in the CFL).
- If the score remains tied at the end of the overtime procedure, an additional overtime procedure is played. The team with the second possession in one overtime procedure will have the first possession in the next overtime procedure.