EXSS Triathlon Series
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EXSS X-TRI Off Road Triathlon and Duathlon : Lake Leschenaultia
The EXSS X-TRI Off Road Triathlon and Duathlon take place at Lake Leschenaultia, Chidlow on 7 November 2026. The event features off-road triathlon and duathlon formats held on mountain bike trails and lake-run loops in Western Australian bushland.
The triathlon uses freshwater swims in the lake followed by mountain bike laps on single track with jumps and alternate lines, then a gravel Lake Loop Run. The duathlon replaces the swim with a running lap around the lake. Courses are lap-based so spectators can see athletes multiple times.
The long course events hold World Triathlon World Championship Qualifying Event status and form part of the TWA Multisport Series. The long course duathlon is designated the Australian Off Road Duathlon Championship; medals for that championship are awarded only to Triathlon WA or Triathlon Australia members. Prize money is offered to the first five male and female finishers in the Long Course Triathlon, with winners required to be present to claim prizes.
Timing is provided by WASE TIMING with live results and leg splits. An aid station is available on the run course. Race rules include no passing on the left and no littering on course.
Race distances: Visit the organization's website for the most recent information.
- Long Course Triathlon: 1 km swim, 20 km bike, 6 km run
- Short Course Triathlon: 500 m swim, 10 km bike, 3 km run
- Long Course Duathlon: 3 km run, 20 km bike, 6 km run
- Short Course Duathlon: 3 km run, 10 km bike, 3 km run
