Competitors for 2003 World Mountain Bike Marathon Championships
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Bart Brentjens |  NED |
CYC | 10 October 1968 |
| Carsten Bresser |  GER |
ATH/CYC | 4 September 1970 |
| Thomas Frischknecht |  SUI |
CYC | 17 February 1970 |
| Sandra Klose | GER |
CYC | 27 July 1974 |
| Magdalena Sadłecka |  POL |
CYC | 17 March 1982 |
| Maja Włoszczowska | POL |
CYC | 9 November 1983 |