| Athlete | Team | Best | ||||||
|---|---|---|---|---|---|---|---|---|
| Quinby, Elijah | Colo. Sch. of Mines |
49.06
2/28-3/1 |
49.16
2/28-3/1 |
49.28
2/15 |
49.61
1/31-2/1 |
50.61
1/25 |
50.69
1/10-11 |
