Debutants
Emerson Fontaine is the youngest debutant in Grand Prix des Marbriers in 2019. There are 23 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | FONTAINE Emerson | Wallonie-Bruxelles Development Team | 19y + 20d |
| 2 | ANDERSSON Andreas | Team Differdange - GeBa | 19y + 316d |
| 3 | BACHMANN Laurin | AKROS - Thömus | 19y + 361d |
| 4 | MOL Wesley | Team Differdange - GeBa | 20y + 176d |
| 5 | VAN ELZAKKER Wout | Team Differdange - GeBa | 20y + 279d |
| 6 | VOISARD Yannis | AKROS - Thömus | 21y + 25d |
| 7 | WIRTGEN Luc | Wallonie-Bruxelles Development Team | 21y + 44d |
| 8 | VENNER Quentin | Wallonie-Bruxelles Development Team | 21y + 66d |
| 9 | VERBEECK Sven | Wallonie-Bruxelles Development Team | 21y + 155d |
| 10 | KYFFIN Zeb | Ribble Pro Cycling | 21y + 178d |
| 11 | QUINTERO Leonel | Start Cycling Team | 22y + 160d |
| 12 | FRANZ Toni | Team Differdange - GeBa | 22y + 227d |
| 13 | DALTON Alex | Ribble Pro Cycling | 22y + 266d |
| 14 | VILLANUEVA Ignacio | Start Cycling Team | 22y + 316d |
| 15 | AULD Scott | Ribble Pro Cycling | 23y + 18d |
| 16 | SELENATI Nico | AKROS - Thömus | 23y + 21d |
| 17 | PAROZ Justin | AKROS - Thömus | 23y + 150d |
| 18 | GÜLLER Timo | AKROS - Thömus | 25y + 75d |
| 19 | BROWN William | Ribble Pro Cycling | 26y + 267d |
| 20 | JONES Richard | Ribble Pro Cycling | 26y + 324d |
| 21 | CLAYTON Damien | Ribble Pro Cycling | 27y + 21d |
| 22 | ŞAMPIYONBISIKLET Mehmet | Team Differdange - GeBa | 33y + 259d |
| 23 | WILSON Simon | Ribble Pro Cycling | 39y + 19d |