Debutants
Roman Semyonov is the youngest debutant in Grand Prix des Marbriers in 2012. There are 31 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | SEMYONOV Roman | Continental Team Astana | 19y + 211d |
| 2 | BARBIER Rudy | Team Bridgestone Anchor | 19y + 247d |
| 3 | LUTSENKO Alexey | Continental Team Astana | 19y + 349d |
| 4 | TEUNS Dylan | Bofrost - Steria | 20y + 173d |
| 5 | WASTYN Emiel | Bofrost - Steria | 20y + 233d |
| 6 | GORBUNOV Vladislav | Continental Team Astana | 20y + 258d |
| 7 | ROOSEN Sjors | Cyclingteam Jo Piels | 20y + 338d |
| 8 | STALNOV Nikita | Continental Team Astana | 20y + 342d |
| 9 | KAMYSHEV Arman | Continental Team Astana | 21y + 160d |
| 10 | JENNINGS Christopher | Rapha Condor | 21y + 198d |
| 11 | CHRISTIE Jason | Team Differdange | 21y + 243d |
| 12 | KOHLVELTER Kevin | Team Differdange | 21y + 321d |
| 13 | VANDYCK Niels | Bofrost - Steria | 21y + 357d |
| 14 | POMOSHNIKOV Sergey | Itera - Katusha | 22y + 35d |
| 15 | ISHANOV Abdraimzhan | Continental Team Astana | 22y + 133d |
| 16 | CHERNETSKI Sergei | Itera - Katusha | 22y + 134d |
| 17 | GRENDA Ben | Rapha Condor | 22y + 137d |
| 18 | SCHREURS Mark | Cyclingteam Jo Piels | 22y + 246d |
| 19 | KUZNETSOV Viacheslav | Team Katusha | 23y + 58d |
| 20 | SCHMIDT Fabien | Roubaix Lille Métropole | 23y + 151d |
| 21 | LANG Richard | Rapha Condor | 23y + 180d |
| 22 | BIHEL César | Team Differdange | 24y + 132d |
| 23 | SCHULTING Peter | Cyclingteam Jo Piels | 25y + 2d |
| 24 | WILLIAMS Peter | Node4 - Giordana Racing Team | 25y + 252d |
| 25 | GUAY Julien | Roubaix Lille Métropole | 25y + 317d |
| 26 | VAN HOOVELS Kevin | Bofrost - Steria | 27y + 21d |
| 27 | SONNERY Blaise | Team Bridgestone Anchor | 27y + 153d |
| 28 | MOSS James | Node4 - Giordana Racing Team | 27y + 192d |
| 29 | INOUE Kazuo | Team Bridgestone Anchor | 31y + 186d |
| 30 | BICHOT Freddy | Véranda Rideau- Super U | 32y + 347d |
| 31 | CLARKE David | Node4 - Giordana Racing Team | 33y + 93d |