400m Sprint Record

Men's Outdoor
44.00 - Quincy Watts from USC in Austin, Texas on 6/06/92

Men's Indoor
44.57 - Kerron Clement from Florida in Fayetteville, Arkansas on 3/12/05

Women's Outdoor
50.18 - Pauline Davis from Alabama in Provo, Utah on 6/03/89

Women's Indoor
50.82 - Sanya Richards from Texas in Fayetteville, Arkansas in 3/13/04