Competitors for 2005 World Duathlon Championships
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Bart Aernouts |  BEL |
TRI | 5 June 1984 |
| Paul Amey |  GBR NZL |
TRI | 27 July 1973 |
| Gitta Arany |  HUN |
TRI | 1987 |
| Bojan Cebin |  SLO |
TRI | 1986 |
| Rosie Clarke |  ENG GBR |
ATH/TRI | 17 November 1991 |
| Michelle Dillon |  AUS ENG GBR |
TRI | 24 May 1973 |
| Tim Don | ENG GBR |
TRI | 14 January 1978 |
| Oliver Freeman | GBR |
TRI | 1986 |
| Javier García |  ESP |
TRI | 17 May 1975 |
| Andrea Horak |  RSA |
TRI | |
| Catriona Morrison | GBR SCO |
TRI | 11 January 1977 |
| Ritchie Nicholls | GBR |
TRI | 12 July 1987 |
| Sven Schelling |  SUI |
TRI | 29 October 1983 |
| Linda Schücker |  GER |
TRI | |
| Rebecca Spence | NZL |
TRI | 19 September 1988 |
| Joerie Vansteelant | BEL |
TRI | 21 June 1982 |
| Miek Vyncke | BEL |
TRI | 1983 |
| Andrea Whitcombe | ENG GBR |
ATH/TRI | 8 June 1971 |