| 1) North Dakota State | 46.61 (04/22) | 46.61 (04/22) | 46.73 (05/12) | 46.73 (05/12) | 46.90 (05/06) | 46.90 (05/06) | ||
| 2) Dayton | 46.61 (04/23) | 46.61 (04/23) | 46.75 (05/07) | 46.75 (05/07) | 47.74 (03/25) | 47.74 (03/25) | 48.36 (04/02) | 48.36 (04/02) |
| 3) South Carolina St. | 47.06 (03/11) | 47.06 (03/11) | 47.17 (04/01) | 47.17 (04/01) | 47.37 (03/17) | 47.37 (03/17) | 47.54 (03/25) | 47.54 (03/25) |
| 4) College of Idaho | 48.85 (03/19) | 49.05 (04/29) | 49.42 (04/01) |