Debutants
Olav Kooij is the youngest debutant in Omloop Het Nieuwsblad ME in 2021. There are 43 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | KOOIJ Olav | Team Jumbo-Visma | 19y + 133d |
| 2 | GRONDIN Donavan | Team Arkéa Samsic | 20y + 154d |
| 3 | FEDOROV Yevgeniy | Astana - Premier Tech | 21y + 11d |
| 4 | STEWART Jake | Groupama - FDJ | 21y + 148d |
| 5 | PIDCOCK Thomas | INEOS Grenadiers | 21y + 212d |
| 6 | LOUVEL Matis | Team Arkéa Samsic | 21y + 223d |
| 7 | VERMEERSCH Florian | Lotto Soudal | 21y + 352d |
| 8 | MÄRKL Niklas | Team DSM | 21y + 361d |
| 9 | HAYTER Ethan | INEOS Grenadiers | 22y + 162d |
| 10 | QUARTERMAN Charlie | Trek - Segafredo | 22y + 174d |
| 11 | COLMAN Alex | Sport Vlaanderen - Baloise | 22y + 220d |
| 12 | KRON Andreas | Lotto Soudal | 22y + 271d |
| 13 | EGHOLM Jakob | Trek - Segafredo | 22y + 306d |
| 14 | VAN POUCKE Aaron | Sport Vlaanderen - Baloise | 22y + 329d |
| 15 | OLDANI Stefano | Lotto Soudal | 23y + 48d |
| 16 | CARVALHO Andre | Cofidis | 23y + 119d |
| 17 | SAJNOK Szymon | Cofidis | 23y + 187d |
| 18 | NORSGAARD Mathias | Movistar Team | 23y + 298d |
| 19 | NARVÁEZ Jhonatan | INEOS Grenadiers | 23y + 360d |
| 20 | VAHTRA Norman | Israel Start-Up Nation | 24y + 96d |
| 21 | MENTEN Milan | Bingoal - Wallonie Bruxelles | 24y + 119d |
| 22 | SCOTSON Callum | Team BikeExchange | 24y + 201d |
| 23 | PADUN Mark | Bahrain - Victorious | 24y + 236d |
| 24 | WILLIAMS Stephen | Bahrain - Victorious | 24y + 263d |
| 25 | BARTHE Cyril | B&B Hotels p/b KTM | 25y + 13d |
| 26 | NIEUWENHUIS Joris | Team DSM | 25y + 16d |
| 27 | WILLEMS Thimo | Sport Vlaanderen - Baloise | 25y + 18d |
| 28 | LECROQ Jérémy | B&B Hotels p/b KTM | 25y + 326d |
| 29 | LIVYNS Arjen | Bingoal - Wallonie Bruxelles | 26y + 179d |
| 30 | SERRANO Gonzalo | Movistar Team | 26y + 194d |
| 31 | VINJEBO Emil Mielke | Team Qhubeka ASSOS | 26y + 340d |
| 32 | SCOTSON Miles | Groupama - FDJ | 27y + 40d |
| 33 | MARTINELLI Davide | Astana - Premier Tech | 27y + 272d |
| 34 | RIESEBEEK Oscar | Alpecin - Fenix | 28y + 66d |
| 35 | ALAPHILIPPE Julian | Deceuninck - Quick Step | 28y + 261d |
| 36 | PEYSKENS Dimitri | Bingoal - Wallonie Bruxelles | 29y + 93d |
| 37 | CAMPENAERTS Victor | Team Qhubeka ASSOS | 29y + 122d |
| 38 | BARDET Romain | Team DSM | 30y + 110d |
| 39 | MORA Sebastián | Movistar Team | 33y + 8d |
| 40 | PASQUALON Andrea | Intermarché - Wanty - Gobert Matériaux | 33y + 56d |
| 41 | IZAGIRRE Gorka | Astana - Premier Tech | 33y + 143d |
| 42 | ARMÉE Sander | Team Qhubeka ASSOS | 35y + 79d |
| 43 | DE KETELE Kenny | Sport Vlaanderen - Baloise | 35y + 267d |