This is the progression of world record improvements of the 100 metres M50 division of Masters athletics.
Key
HandAutoWindAthleteNationalityBirthdateLocationDate10.881.8Willie Gault05.09.1960Los Angeles07.05.201110.951.8Bill Collins20.11.1950Baton Rouge13.04.200211.03Ken Dennis13.05.1937Eugene14.08.198711.24 -3.7 Stephen Robbins 31.01.1943 Buffalo15.07.199511.58Andrew Faure1933San Juan23.09.198311.4Hermund Hogheim1932Fana08.06.198311.4Edmund Schuler20.06.192726.07.197811.4Alphonse JuillandLos Angeles18.06.1973
References
Masters Athletics 100 m list