Debutants
Marco Brenner is the youngest debutant in La Flèche Wallonne in 2021. There are 39 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | BRENNER Marco | Team DSM | 18y + 237d |
| 2 | GIRMAY Biniam | DELKO | 21y + 19d |
| 3 | PAQUOT Tom | Bingoal Pauwels Sauces WB | 21y + 211d |
| 4 | PIDCOCK Thomas | INEOS Grenadiers | 21y + 265d |
| 5 | LOUVEL Matis | Team Arkéa Samsic | 21y + 276d |
| 6 | LEKNESSUND Andreas | Team DSM | 21y + 335d |
| 7 | GRIGNARD Sébastien | Lotto Soudal | 21y + 357d |
| 8 | MARIT Arne | Sport Vlaanderen - Baloise | 22y + 90d |
| 9 | STANNARD Robert | Team BikeExchange | 22y + 217d |
| 10 | CARR Simon | EF Education - Nippo | 22y + 235d |
| 11 | HERREGODTS Rune | Sport Vlaanderen - Baloise | 22y + 268d |
| 12 | COLMAN Alex | Sport Vlaanderen - Baloise | 22y + 273d |
| 13 | WIRTGEN Luc | Bingoal Pauwels Sauces WB | 22y + 288d |
| 14 | MEEUS Jordi | BORA - hansgrohe | 22y + 294d |
| 15 | MONIQUET Sylvain | Lotto Soudal | 23y + 97d |
| 16 | OLDANI Stefano | Lotto Soudal | 23y + 101d |
| 17 | RIOU Alan | Team Arkéa Samsic | 24y + 19d |
| 18 | RIKUNOV Petr | Gazprom - RusVelo | 24y + 56d |
| 19 | DE BOD Stefan | Astana - Premier Tech | 24y + 155d |
| 20 | FEDELI Alessandro | DELKO | 25y + 50d |
| 21 | VELASCO Simone | Gazprom - RusVelo | 25y + 140d |
| 22 | GARCÍA CORTINA Iván | Movistar Team | 25y + 152d |
| 23 | ARANBURU Alex | Astana - Premier Tech | 25y + 214d |
| 24 | HERMANS Quinten | Intermarché - Wanty - Gobert Matériaux | 25y + 266d |
| 25 | ROTA Lorenzo | Intermarché - Wanty - Gobert Matériaux | 25y + 333d |
| 26 | EG Niklas | Trek - Segafredo | 26y + 105d |
| 27 | SERRANO Gonzalo | Movistar Team | 26y + 247d |
| 28 | DE GENDT Aimé | Intermarché - Wanty - Gobert Matériaux | 26y + 308d |
| 29 | TUSVELD Martijn | Team DSM | 27y + 224d |
| 30 | CARAPAZ Richard | INEOS Grenadiers | 27y + 327d |
| 31 | CAICEDO Jonathan Klever | EF Education - Nippo | 27y + 358d |
| 32 | NAESEN Lawrence | AG2R Citroën Team | 28y + 236d |
| 33 | ARU Fabio | Team Qhubeka ASSOS | 30y + 292d |
| 34 | NAKANE Hideto | EF Education - Nippo | 30y + 354d |
| 35 | TRATNIK Jan | Bahrain - Victorious | 31y + 57d |
| 36 | ROGLIČ Primož | Team Jumbo-Visma | 31y + 174d |
| 37 | BOIVIN Guillaume | Israel Start-Up Nation | 31y + 331d |
| 38 | WALSLEBEN Philipp | Alpecin - Fenix | 33y + 153d |
| 39 | SCHILLINGER Andreas | BORA - hansgrohe | 37y + 282d |