Info
| Last name | Seitz |
| First name | William |
| Nationality |  United States |
| Date of birth | 28-12-2001 |
| Age | 23 |
| Date | Rank | Race |
|---|---|---|
| 17-07 | DNF | USA National Championships - XCO U19 (CN) |
| 27-06 | DNF | National Road Championships - USA U19 (CN) |
| 14-01 | 29 | USA National Championships Cyclo-Cross U19 (CN) |