| 1) | Lieghio, Anthony | Arkansas | 1:48.58 (02/10-02/11) | 1:49.01 (01/27-01/28) | 1:49.24 (02/24-02/26) | 1:49.34 (03/02-03/03) | 1:49.69 (02/03-02/04) | 1:50.25 (02/24-02/26) |
| 2) | Sigilai, Peter | Eastern Kentucky | 1:48.58 (03/02-03/03) | 1:49.89 (01/27-01/28) | 1:51.20 (01/13-01/14) | 1:54.98 (02/24-02/25) | 1:55.79 (02/24-02/25) |