Debutants
Aljaž Prah is the youngest debutant in Gran Premio Sportivi di Poggiana - Trofeo Bonin Co in 2017. There are 21 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | PRAH Aljaž | ROG - Ljubljana | 18y + 236d |
| 2 | POGAČAR Tadej | ROG - Ljubljana | 18y + 326d |
| 3 | STANNARD Robert | Mitchelton Scott | 18y + 331d |
| 4 | SWEENY Harry | Mitchelton Scott | 19y + 35d |
| 5 | JERMAN Žiga | ROG - Ljubljana | 19y + 48d |
| 6 | WILDAUER Markus | Tirol Cycling Team | 19y + 80d |
| 7 | FRIEDRICH Marco | WSA-Greenlife | 19y + 178d |
| 8 | MUGISHA Samuel | Dimension Data for Qhubeka | 19y + 251d |
| 9 | DALLINGER Christian | WSA-Greenlife | 19y + 334d |
| 10 | ROMANO Francesco | UAE Team Emirates | 20y + 35d |
| 11 | KOLB Stefan | WSA-Greenlife | 20y + 92d |
| 12 | GAMPER Patrick | Tirol Cycling Team | 20y + 176d |
| 13 | WELDU Hafetab | Dimension Data for Qhubeka | 20y + 336d |
| 14 | PADUN Mark | Bahrain Merida Pro Cycling Team | 21y + 38d |
| 15 | VALVASORI Larry | Team Differdange - Losch | 21y + 75d |
| 16 | ARERUYA Joseph | Dimension Data for Qhubeka | 21y + 224d |
| 17 | FREIBERGER Markus | Tirol Cycling Team | 21y + 237d |
| 18 | VAN NIEKERK Morné | Dimension Data for Qhubeka | 21y + 361d |
| 19 | SALZMANN Jodok | WSA-Greenlife | 22y + 139d |
| 20 | RAGGIO Luca | Wilier Triestina - Selle Italia | 22y + 140d |
| 21 | NYCH Artem | Gazprom-RusVelo | 22y + 145d |