Otis Crandall Davis (born July 12, 1932) is a former American athlete, winner of two gold medals for record-breaking performances in both the 400 m and
4 × 400 m relay at the 1960 Summer Olympics. Davis set a new world record of 44.9 seconds in the 400 m event, and he became the first man to break the 45-second barrier.<unk> Davis set a new world record of 44.9 seconds in the 400 m event, and he became the first man to break the 45-second barrier.