Info
| Last name | Postma |
| First name | Johan-Bart |
| Nationality |  Netherlands |
| Date of birth | 29-12-2008 |
| Age | 16 |
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 25-10 | 27 | Exact Cross - Heerde U19 (C2) | |||||
| 21-10 | 13 | Kiremko Nacht Van Woerden U19 (C2) | |||||
| 04-10 | 37 |  Exact Cross - Meulebeke U19 (C2) | |||||
| 20-09 | 47 |  International Cyclo-Cross Bad Salzdetfurth #1 U19 (C2) | |||||
| 14-09 | 18 | Kleeberg Cross U19 (C2) | |||||
| BESTRONICS Acht van Bladel (2.1) | |||||||
| 88 |  Standings | ||||||
| 27 |  Youth | ||||||
| 29-06 | 105 | Stage 3bBladel - Bladel (8.0km) | |||||
| 29-06 | 34 | Stage 3aBladel - Bladel (93.0km) | |||||
| 28-06 | 27 | Stage 2Netersel - Bladel (112.0km) | |||||
| 27-06 | 68 | Stage 1Bladel - Bladel (105.0km) | |||||
| 22-06 | 18 | National Road Championships - Netherlands U19 (CN) | |||||
| 12-01 | 15 | Dutch National Championships CX U19 (CN) | |||||