| 1) | Sanders, Deon | Iowa State | 47.19 (04/23) | 47.41 (05/13-05/15) | 47.98 (04/15-04/16) | 48.34 (04/01-04/02) | 48.50 (04/01-04/02) | 49.18 (03/18-03/19) | ||
| 2) | Parker, Justin | UC Riverside | 47.19 (03/05) | 47.49 (04/14-04/16) | 47.50 (04/15-04/16) | 47.63 (04/30) | 48.00 (03/24-03/26) | 48.12 (03/18-03/19) | 48.43 (04/08-04/09) | 48.71 (05/13-05/14) |
| 3) | Smith, Thaddeus | Cal St. Fullerton | 47.19 (03/11-03/12) |