Inofec Triathlon Terheijden

About the race

Inofec Triathlon Terheijden is a long-standing fixture in the Dutch triathlon season, with its 42nd edition on Sunday 14 June 2026. The race is centred around the Roeivereniging Breda facility on Bredaseweg in Terheijden, with the swim starting in the river De Mark. The setup is deliberately compact: swim, bike transition, run transition and finish all sit within roughly 500 metres of each other. Participants can choose an eighth triathlon with a 500 m swim, 20 km bike and 5 km run, or a quarter triathlon with a 1000 m swim, 40 km bike and 10 km run. Both formats are also available for duos or trios. That makes Terheijden appealing for individual triathletes as well as teams looking for a classic, manageable race day.