Info
| Last name | Sioen |
| First name | Sylvester |
| Nationality |  Belgium |
About Sylvester Sioen
Sylvester Sioen is a Belgian cycling professional, 0 years old.
| Date | Rank | Race |
|---|---|---|
| 22-10 | 57 | UCI World Cup Kalmthout U19 (CU19) |
| 15-10 | 44 | Superprestige Ruddervoorde U19 (CU19) |