is it possible to have a score of 1 in football
Safeties are the least common method of scoring in American football but are not rare occurrences -- since 1932, a safety has occurred once every 14.31 games in the National Football League (NFL), or about once a week under current scheduling rules. On October 21, 1973, Fred Dryer, playing for the Los Angeles Rams against the Green Bay Packers, became the only player in NFL History to score two safeties in a single game. A much rarer occurrence is the one-point safety, which can be scored by the offense on an extra point or two-point conversion attempt; those have occurred at least twice in NCAA Division I football since 1996, most recently at the 2013 Fiesta Bowl. No conversion safeties have occurred since at least 1940 in the NFL. A conversion safety by the defense is also possible, though highly unlikely; although this has never occurred, it is the only possible way a team could finish with a single point in an American football game.
Safety (gridiron football score)