Info
| Last name | Perez Serdio |
| First name | Julio |
| Nationality |  Spain |
| Date of birth | 13-09-2001 |
| Age | 24 |
| Date | Rank | Race |
|---|---|---|
| 08-12 | 25 | Ziklo kross Igorre (C2) |
| 30-11 | 18 | Abadiñoko udala saria (C2) |
| 10-11 | 29 | Cyclo-cross de Karrantza (C2) |
| 27-10 | 36 | Elorrioko Basqueland Ziklokrosa (C1) |
| 26-10 | 25 | Ziklokross Laudio (C1) |
| 21-07 | 15 | Spanish National Championship - XCO U19 (CN) |
| 07-04 | 12 | Superprestigio MTB - Arnedo U19 (2) |
| 11-01 | 12 | Spanish National Championships U19 (CN) |