Info
| Last name | Mattern |
| First name | Grace |
| Nationality |  United States |
About Grace Mattern
Grace Mattern is a American cycling professional, 0 years old.
Results
| Date | Rank | Race |
|---|---|---|
| 16-11 | 27 | Supercross Day 1 (C2) |
| 09-11 | 10 |  Pan-American Championships U19 (CC) |
| 08-09 | 36 | Rochester Cyclocross 2 (C2) |