Competitors for 1998 World Duathlon Championships
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Simone Aschwanden |  SUI |
TRI | 1979 |
| Daniel Berglas | SUI |
TRI | |
| Falk Cierpinski |  GER |
ATH/TRI | 17 May 1978 |
| Dolorita Gerber-Fuchs | SUI |
TRI | 29 April 1968 |
| Irma Heeren |  NED |
TRI | 16 April 1967 |
| Nicolas Lebrun |  FRA |
TRI | 9 April 1973 |
| Yann Millon | FRA |
ATH/TRI | 26 March 1970 |
| Andrew Noble |  AUS |
TRI | 19 August 1965 |
| Lesley Paterson |  GBR SCO |
TRI | 12 October 1980 |
| Edwige Pitel | FRA |
TRI | 4 June 1967 |
| Lenka Radová-Zemanová |  CZE |
TRI | 9 October 1979 |
| Marcel Zamora |  ESP |
TRI | 20 March 1978 |