| MARK | ATHLETE NAME | AFFILIATION | |
| 51.31 | BILLY, SETH | (Wyoming) | |
| 51.33 | HUNTER, JEFF | (Arizona) | |
| 52.14 | MILNER, QUINTON | (WCAP) | |
| 5215 | HOLLICAY, BRANDON | (Oregon) | |
| 52.32 | WALKER, KEVIN | (Unatt) | |
| 52.33 | BARBIERI, JOHN | (UCLA) | |
| 52.59 | LANDRETH, JOSH | (Arkansas) | |
| 53.01 | WILLIAMSON, SCOTT | (Iowa) |