Debutants
Youngest debutants in Zesbergenprijs Harelbeke in 2003. There are 11 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | STILER-COTE Olivier | United States | 18y + 357d |
| 2 | SCHEUNEMAN Niels | Rabobank Continental Team | 19y + 98d |
| 3 | MOLANDSVEEN Andreas | Team Ringerike | 19y + 218d |
| 4 | MAASKANT Martijn | Van Vliet - EBH - Gazelle | 19y + 245d |
| 5 | OEGEMA Bart | Cyclingteam Bert Story - Piels | 20y + 34d |
| 6 | YATES Jeremy | Quick Step - Davitamon - Latexco | 20y + 266d |
| 7 | VAN DER PLUIJM Robin | Cyclingteam Bert Story - Piels | 21y + 164d |
| 8 | DOCKX Bart | Quick Step - Davitamon - Latexco | 21y + 208d |
| 9 | FITZGERALD Mark | United States | 23y + 2d |
| 10 | ZELDERLOO Glen | Miche | 23y + 86d |
| 11 | VAN DER PLUIJM Marvin | Cyclingteam Bert Story - Piels | 24y + 77d |