This is the progression of world record improvements of the 100 metres hurdles M50 division of Masters athletics.

Key

HandAutoWindAthleteNationalityBirthdateLocationDate13.57 Walt Butler 21.03.1941 Naperville 05.07.199113.71 Walt Butler 21.03.1941 Norwalk 22.06.199114.66 Charles Miller 28.07.1937 Eugene 03.08.198914.7 Jack Greenwood 05.02.1926 San Diego 19.08.197815.1 Jack Greenwood 05.02.1926 Gothenburg 12.08.1977

References