Info
| Last name | van Witzenburg-de Groot |
| First name | Marieke |
| Nationality |  Netherlands |
| Date of birth | 29-10-1985 |
| Age | 40 |
Monuments
Grand tours
| Year | Giro d'Italia | Tour de France | Vuelta a España |
|---|---|---|---|
| 2020 | - | - | 54th |
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 01-11 | 32 |  X2O Badkamers Trofee Koppenbergcross (C1) | |||||
| 23-10 | 48 | Telenet Superprestige Ruddervoorde (C1) | |||||
| 21-10 | 14 | Kermiscross Ardooie (C2) | |||||
| 05-10 | 9 | Binche Chimay Binche pour Dames (1.2) | |||||
| Trophée des Grimpeuses Vresse-sur-Semois (2.2) | |||||||
| 37 |  Standings | ||||||
| 18-09 | 42 | Stage 2Bohan - Vresse-sur-Semois (105.0km) | |||||
| 17-09 | 57 | Stage 1Vresse-sur-Semois - Bièvre (132.0km) | |||||
| 12-09 | 15 |  La Choralis Fourmies Féminine (1.2) | |||||
| 31-03 | DNS | Dwars door Vlaanderen (1.1) | |||||
| 28-03 | DNF | Gent-Wevelgem In Flanders Fields (1.WWT) | |||||
| 25-03 | DNF | Oxyclean Classic Brugge-De Panne (1.WWT) | |||||
| 17-03 | DNF | Danilith Nokere Koerse (1.Pro) | |||||
| 02-03 | 90 | Le Samyn des Dames (1.1) | |||||
| 27-02 | DNF | Omloop Het Nieuwsblad Women (1.Pro) | |||||
Teams
Victories
| This year | 0 |
| Total | 0 |