| 1) | Kelly, Daniel | Navy | 48.31 (03/03) | 48.37 (04/21-04/22) | 48.47 (03/03) | 48.47 (02/17) | 48.57 (03/18) | 48.62 (03/11) | 48.69 (02/10) | 48.83 (01/28) |
| 2) | Higgins, Lamont | Penn State | 48.31 (05/05) | 48.86 (05/12-05/14) | 49.08 (01/27) | 49.09 (02/10) | 49.17 (04/14-04/15) | 49.45 (02/24) | 49.47 (04/22) | 49.95 (01/20) |