| 1) | Green, Juan | Illinois | 47.03 (02/22-02/23) | 47.18 (02/08-02/09) | 47.19 (02/22-02/23) | 47.25 (02/01-02/02) | 47.44 (03/01-03/02) | 47.48 (01/18-01/19) | 47.68 (02/01-02/02) | 47.89 (01/25-01/26) |
| 2) | Klavins, Braxton | SIU-Edwardsville | 47.03 (03/01) | 47.53 (02/08-02/09) | 48.11 (02/22-02/23) | 48.27 (01/18) | 49.41 (02/22-02/23) |