400m Sprint Record

Men's Outdoor
44.69 - Darrell Robinson from Wilson, Tacoma, Washington in Indianapolis, Indiana on 7/24/82

Men's Indoor
45.92 - Elzie Coleman from Free Academy, Newburgh, New York in Pocatello, Idaho on 2/21/04

Women's Outdoor
50.69 - Sanya Richards from Aquinas, Ft Lauderdale, Florida in Stanford, California on 6/22/02

Women's Indoor
52.10 - Sanya Richards from Aquinas, Ft Lauderdale, Florida in New York, New York on 3/10/02