Info
| Last name | van Herwijnen |
| First name | Sem |
| Nationality |  Netherlands |
About Sem van Herwijnen
Sem van Herwijnen is a Dutch professional cyclist, 0 years old. Active in road cycling.
Results
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
 Okolo jižních Čech / Tour of South Bohemia (2.2) | |||||||
| 120 |  Standings | ||||||
| 63 |  Youth | ||||||
| 07-09 | 87 | Stage 4Trhové Sviny - Jindřichův Hradec (155.0km) | |||||
| 06-09 | 124 | Stage 3Český Krumlov - Horská Kvilda (130.0km) | |||||
| 05-09 | 149 | Stage 2Nové Hrady - Studená (167.0km) | |||||
| 04-09 | 129 | Stage 1Třeboň - Jemnice (169.0km) | |||||