Debutants
Youngest debutants in GP Istria 1 - Umag in 2003. There are 56 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | VERBIST Evert | Quick Step - Davitamon - Latexco | 18y + 227d |
| 2 | ICKX Mario | Quick Step - Davitamon - Latexco | 18y + 360d |
| 3 | SCHEUNEMAN Niels | Rabobank Continental Team | 19y + 50d |
| 4 | HONIG Reinier | Cyclingteam Bert Story - Piels | 19y + 104d |
| 5 | WESSELING Marco | Van Vliet - EBH - Gazelle | 19y + 219d |
| 6 | VAN DEN BROECK Jurgen | Quick Step - Davitamon - Latexco | 20y + 8d |
| 7 | WOUTERS Anton | Quick Step - Davitamon - Latexco | 20y + 26d |
| 8 | STEENBERGEN Kor | Cyclingteam Bert Story - Piels | 20y + 34d |
| 9 | GILING Bas | Rabobank Continental Team | 20y + 97d |
| 10 | ELIJZEN Michiel | Rabobank Continental Team | 20y + 162d |
| 11 | VAN HECKE Preben | Quick Step - Davitamon - Latexco | 20y + 215d |
| 12 | YATES Jeremy | Quick Step - Davitamon - Latexco | 20y + 218d |
| 13 | JORGENSEN Hans | Glud & Marstrand - Horsens | 20y + 224d |
| 14 | DE VOCHT Wim | Quick Step - Davitamon - Latexco | 20y + 286d |
| 15 | KWANTEN Frank | Cyclingteam Bert Story - Piels | 21y + 24d |
| 16 | KOHL Bernhard | Rabobank Continental Team | 21y + 36d |
| 17 | STOUGJE Martijn | Van Vliet - EBH - Gazelle | 21y + 99d |
| 18 | VAN DER PLUIJM Robin | Cyclingteam Bert Story - Piels | 21y + 116d |
| 19 | DEKKERS Hans | Rabobank Continental Team | 21y + 186d |
| 20 | DE FAUW Dimitri | Quick Step - Davitamon - Latexco | 21y + 211d |
| 21 | KOEMAN Patrick | Cyclingteam Bert Story - Piels | 21y + 241d |
| 22 | SMIT Dennis | Van Vliet - EBH - Gazelle | 21y + 356d |
| 23 | HESJEDAL Ryder | Rabobank Continental Team | 22y + 62d |
| 24 | TEN DAM Laurens | Rabobank Continental Team | 22y + 88d |
| 25 | SCHRÖDER Björn | Team Wiesenhof - Leipzig | 22y + 105d |
| 26 | MARIN Matej | Perutnina Ptuj | 22y + 222d |
| 27 | DANČULOVIĆ Tomislav | Perutnina Ptuj | 22y + 239d |
| 28 | WALLAARD Arno | Quick Step - Davitamon - Latexco | 23y + 119d |
| 29 | DEMARIN Massimo | Perutnina Ptuj | 23y + 168d |
| 30 | VAN GULIK Fulco | Cyclingteam Bert Story - Piels | 23y + 192d |
| 31 | PODGORNIK Dean | Perutnina Ptuj | 23y + 221d |
| 32 | DE WAARD Bram | Van Vliet - EBH - Gazelle | 23y + 242d |
| 33 | ROGINA Radoslav | Perutnina Ptuj | 23y + 343d |
| 34 | VAN DER PLUIJM Marvin | Cyclingteam Bert Story - Piels | 24y + 29d |
| 35 | DELEN Matthijs | Van Vliet - EBH - Gazelle | 24y + 221d |
| 36 | BEYENS Yoeri | Quick Step - Davitamon - Latexco | 24y + 288d |
| 37 | JENSEN Gøran | Glud & Marstrand - Horsens | 24y + 344d |
| 38 | NIELSEN LARSEN Jacob | Glud & Marstrand - Horsens | 25y + 28d |
| 39 | VAN DER BURG Germ | Cyclingteam Bert Story - Piels | 25y + 92d |
| 40 | JESPERSEN Jan | Glud & Marstrand - Horsens | 25y + 165d |
| 41 | MEIJER Erwin | Van Vliet - EBH - Gazelle | 25y + 195d |
| 42 | KELNER Miran | Perutnina Ptuj | 25y + 272d |
| 43 | NIELSEN Max | Glud & Marstrand - Horsens | 25y + 287d |
| 44 | SLAGER Stefan | Cyclingteam Bert Story - Piels | 25y + 327d |
| 45 | PETERSEN Jannik Skovlund | Glud & Marstrand - Horsens | 26y + 181d |
| 46 | LOCHOWSKI Roberto | Team Wiesenhof - Leipzig | 26y + 330d |
| 47 | WACKERNAGEL Lars | Team Wiesenhof - Leipzig | 27y + 184d |
| 48 | VAN MELIS Angelo | Van Vliet - EBH - Gazelle | 27y + 253d |
| 49 | FILIP Branko | Perutnina Ptuj | 27y + 328d |
| 50 | NIKOLAI Enrico | Team Wiesenhof - Leipzig | 28y + 30d |
| 51 | MERVAR Boštjan | Perutnina Ptuj | 29y + 140d |
| 52 | SVIBEN Sasa | Perutnina Ptuj | 30y + 30d |
| 53 | RASMUSSEN Dennis | Glud & Marstrand - Horsens | 30y + 303d |
| 54 | FARENHOUT Edward | Van Vliet - EBH - Gazelle | 33y + 178d |
| 55 | BONČA Valter | Perutnina Ptuj | 34y + 329d |
| 56 | CORDES Tom | Cyclingteam Bert Story - Piels | 36y + 255d |