How does an NFL overtime differ from a National College Football League overtime?

Answer 1

Here are the overtime rules for the NFL and the NCAA Football

In the NFL's regular season, if a game is tied at the end of regulation, it goes into Overtime. The visiting team gets to choose heads or tails for the coin toss. They play another 15:00 minute period. The first team to score (Whether by TD, field goal, or safety. Doesn't matter), automatically wins the game. If no team has scored by the end of the Overtime period, the game is deemed a tie. This is a rare occurrence.

In the NFL's post season games (Playoffs and Super Bowl), the rules are the same as the regular season, except once the 15:00 minute overtime period runs out, they start another 15:00 Overtime period. It should be noted that no Super Bowl has ever gone into Overtime. The longest NFL game was between the Miami Dolphins and the Kansas City Chiefs on December 25, 1971. The Miami Dolphins kicker Garo Yepremian kicked the game winning field goal 7 minutes and 40 seconds into double overtime.

In NCAA Football, if a game goes into Overtime. Each team gets a chance to score from the opponent's 25 yard line (25 yards from the endzone) with no game clock. If the score is still tied after the first overtime period, they play a second overtime period. This process repeats itself until someone is winning at the end of an overtime period. Starting with the third Overtime period, teams who score TD's are required to go for a 2 point conversion, instead of kicking a single extra point.