Info
| Last name | Demarbaix |
| First name | Sebastien |
| Nationality |  Belgium |
| Date of birth | 19-12-1973 |
| Age | 51 |
| Place of birth | Lessines |
Monuments
| Date | Rank | Race |
|---|---|---|
| 09-05 | 18 | Grand Prix de Wallonie (1.2) |
| 01-05 | 6 |  Trophée des Grimpeurs (1.3) |
| 24-04 | 49 | Grote Scheldeprijs - Schoten (1.1) |
| 31-03 | 40 | De Brabantse Pijl (1.2) |
| 05-02 | 17 | GP d'Ouverture La Marseillaise (1.3) |
Teams
Staff
Rider
| Year | Team |
|---|---|
| 2002 | Ag2r Prévoyance |
| 2001 | Ag2r Prévoyance - Décathlon |
| 2000 | Lotto - Adecco |
| 1999 | Lotto - Mobistar |
| 1998 | Home Market - Ville de Charleroi |
| 1997 | Lotto - Mobistar - Isoglass |
| 1996 | Lotto - Isoglass |
| 1994 | Lotto |
Victories
| This year | 0 |
| Total | 0 |