| 1) | Emrich, Zachery | Brown | 1:49.52 (05/11) | 1:50.28 (04/15) | 1:50.73 (03/24-03/25) | 1:51.38 (04/21-04/22) | 1:52.73 (05/06-05/07) | 1:53.04 (04/08) | 1:53.82 (05/06-05/07) |
| 2) | Rotich, Nickson | Eastern Kentucky | 1:49.52 (04/28-04/29) | 1:51.11 (05/06) | 1:51.13 (04/21-04/22) | 1:52.59 (05/11-05/13) | 1:55.09 (03/18) | 1:55.32 (05/11-05/13) |