Debutants
Robert Stannard is the youngest debutant in Liège - Bastogne - Liège U23 in 2017. There are 40 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | STANNARD Robert | Mitchelton Scott | 18y + 211d |
| 2 | PESTIAUX Yann | AGO-Aqua Service | 18y + 253d |
| 3 | SCOTT Robert | Team Wiggins | 18y + 265d |
| 4 | SWEENY Harry | Mitchelton Scott | 18y + 280d |
| 5 | KRON Andreas | Riwal Platform Cycling Team | 18y + 318d |
| 6 | GRESSIER Maxime | Development Team Sunweb | 18y + 359d |
| 7 | CHARMIG Anthon | Team Virtu Cycling | 19y + 21d |
| 8 | OLDE MEIERINK Lars | Destil - Jo Piels Cycling Team | 19y + 46d |
| 9 | GALL Felix | Development Team Sunweb | 19y + 47d |
| 10 | SCHELLING Ide | SEG Racing Academy | 19y + 68d |
| 11 | EEKHOFF Nils | Development Team Sunweb | 19y + 82d |
| 12 | KANTER Max | Development Team Sunweb | 19y + 175d |
| 13 | TASSET Marvin | AGO-Aqua Service | 19y + 181d |
| 14 | WALKER Joey | Team Wiggins | 19y + 212d |
| 15 | COSTA Adrien | Axeon Hagens Berman | 19y + 239d |
| 16 | DRAPER Nathan | Team Wiggins | 19y + 278d |
| 17 | STORK Florian | Development Team Sunweb | 19y + 353d |
| 18 | JENNER Samuel | Mitchelton Scott | 20y + 13d |
| 19 | NARVÁEZ Jhonatan | Axeon Hagens Berman | 20y + 42d |
| 20 | STORER Michael | Mitchelton Scott | 20y + 46d |
| 21 | BREUKELMAN Chiel | Destil - Jo Piels Cycling Team | 20y + 89d |
| 22 | SIX Franklin | AGO-Aqua Service | 20y + 107d |
| 23 | POWLESS Neilson | Axeon Hagens Berman | 20y + 224d |
| 24 | HINDLEY Jai | Mitchelton Scott | 20y + 345d |
| 25 | VANDREPOTTE Anthony | T.Palm - Pole Continental Wallon | 20y + 354d |
| 26 | VAN LOON Jordi | Destil - Jo Piels Cycling Team | 20y + 359d |
| 27 | ERIKSSON Lucas | SEG Racing Academy | 21y + 5d |
| 28 | GARDNER Dan | An Post Chain Reaction | 21y + 40d |
| 29 | HAMILTON Lucas | Mitchelton Scott | 21y + 62d |
| 30 | TEGGART Matthew | An Post Chain Reaction | 21y + 97d |
| 31 | RÓZSA Balázs | Team Differdange - Losch | 21y + 140d |
| 32 | MACKINNON Sean | An Post Chain Reaction | 21y + 142d |
| 33 | VAN DER KOOIJ Bas | Destil - Jo Piels Cycling Team | 21y + 150d |
| 34 | PICOUX Maximilien | T.Palm - Pole Continental Wallon | 21y + 154d |
| 35 | RAHBEK Mads | Team Virtu Cycling | 21y + 178d |
| 36 | VAN BROEKHOVEN Rob | Destil - Jo Piels Cycling Team | 21y + 181d |
| 37 | WÜRTZ SCHMIDT Kasper | Riwal Platform Cycling Team | 21y + 233d |
| 38 | TIETEMA Bas | An Post Chain Reaction | 22y + 76d |
| 39 | EG Niklas | Team Virtu Cycling | 22y + 99d |
| 40 | STEEN Nicolaj | Team Virtu Cycling | 22y + 101d |