| Winner's Name | Event | Mark | Year | Site |
|---|---|---|---|---|
| Julia Heymach | 6K | 20:01.1 | 2021 | Sacramento, Calif. |
| Ella Donaghu | 6K | 19:50.8 | 2019 | Colfax, Wash. |
| Teresa McWalters | 6K | 19:57.30 | 2007 | Springfield, Ore. |
| Arianna Lambie | 6K | 20:58.85 | 2006 | Fairview, Ore. |
| Arianna Lambie | 6K | 19:29.3 | 2005 | Stanford, Calif. |
| Alicia Craig | 6K | 20:03 | 2004 | Fresno, Calif. |
| Alicia Craig | 6K | 20:06 | 2003 | Fairview, Ore. |
| Alicia Craig | 6K | 20:39 | 2002 | Stanford, Calif. |
| Julia Stamps | 5K | 16:50 | 1999 | Fairview, Ore. |
| Louise Watson | 5K | -- | 1992 | Tuscon, Ariz. |