Info
| Last name | Hayase |
| First name | Kumi |
| Nationality |  Japan |
| Date of birth | 25-04-1975 |
| Age | 50 |
| Date | Rank | Race |
|---|---|---|
| 20-10 | 8 | Japan Mountain Bike Cup (1) |
| 08-07 | 11 | Japanese National Championships - XCO (CN) |
| 27-05 | 11 | Coupe de Japon MTB Yawatahama (HC) |
| 15-01 | 24 | Japanese National Championships CX (CN) |