| 1) | Koss, Tyler | Air Force | 47.18 (05/11-05/14) | 47.25 (04/23) | 47.51 (05/11-05/14) | 47.97 (04/08-04/09) | 48.00 (03/24-03/26) | 48.24 (04/01-04/02) |
| 2) | Matthews, Drew | Kansas | 47.18 (05/07) | 47.40 (04/30) | 48.02 (04/08-04/09) | 48.36 (04/20-04/23) | 48.60 (05/13-05/15) |