Info
| Last name | Pieterse |
| First name | Isa |
| Nationality |  Netherlands |
| Date of birth | 27-01-2000 |
| Age | 25 |
| Date | Rank | Race |
|---|---|---|
| 28-10 | 43 | De Grote Prijs van Brabant (C1) |
| 24-10 | 37 | Kiremko Nacht van Woerden (C2) |
| 01-10 | 41 | Telenet Superprestige - Gieten (C1) |
| 17-06 | DNF | National Road Championships - Netherlands U19 (CN) |
| 21-05 | 10 |  Eupen MTB weekend U19 (2) |
| 07-01 | DNF | Dutch National Championships CX U23 (CN) |