In the NFL, during the regular season, there is no double overtime. Games can only go into one 10-minute overtime period, and if the score is still tied after that period, the game ends in a tie. This rule applies as of the 2023 season and onward, where both teams are guaranteed an offensive possession in overtime, even if the first team scores a touchdown on its opening drive. However, if no winner is determined after this single overtime period, the game concludes without going into further overtime periods in the regular season. In contrast, during the NFL playoffs, there can be multiple overtime periods, including double overtime. Overtime periods in the playoffs last 15 minutes each, and if the game is still tied at the end of one overtime, additional overtime periods continue until a winner is determined. There have been several notable double overtime playoff games in NFL history, including the longest game ever played, which lasted into double overtime. Therefore, double overtime exists only in NFL postseason games, not in the regular season.
