400m Sprint Record

Men's Outdoor
43.87 - Steve Lewis from US in Seoul, South Korea on 9/28/88

Men's Indoor
45.90 - Brandon Couts from US in Indianapolis, Indiana on 3/14/98

Women's Outdoor
49.42 - Grit Breuer from Germany in Tokyo, Japan on 8/27/91


Women's Indoor
51.45 - Sanya Richards from USA in Fayetteville, Arkansas on 2/13/04