 In college football and the NFL, a conversion safety could also be scored by the defense. To accomplish this, the kicking team would have to retreat all the way back to their own end zone and then fumble the ball out of it or be tackled in it. A more plausible scenario would involve a turnover on the extra point attempt followed by a lost fumble before the defensive player reaches the end zone, with the ball finally being downed by the offense in its own end zone. While such a conversion safety has never been scored by the defense, it is the only possible way in which a team could finish with a single point in an American football game.
