Western Australia
Triathlon Calendar Western Australia 2026-2027
Monthly updates for Western Australia
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Western Australia for 2026-2027! Our updated list features 42 exciting races across the region. Find your next race in Western Australia below and join the running community at these great events!
October 2026
A flat, fast festival at Champion Lakes featuring a half marathon, 10k and 5k plus non-drafting duathlon formats including 80k and 55k distances and team relays.
A multi discipline relay from Jayes Bridge to Bridgetown covering canoe, equestrian, swim, cycle and run over more than 60 km for teams or solo competitors.
November 2026
Experience a scenic multi-lap triathlon at Shoalwater Bay featuring Olympic, Sprint, and Aquabike distances along the beautiful Rockingham coastline.
Timed multisport event on 1 November 2026 at Oasis Clubrooms offering triathlon, duathlon, aquathlon and aquabike formats; club members free, non-members $50 permit.
Off-road triathlon and duathlon at Lake Leschenaultia on 7 November 2026, featuring World Triathlon qualifying races, mountain bike laps, lake swims, and championship duathlon status.
Monthly updates for Western Australia
Get new running races (and updates) in your inbox every month.
A pool‑based triathlon at WA Athletics Stadium with multi‑lap bike and run courses, youth categories and fun runs, supporting the National Breast Cancer Foundation.
Club race day in Halls Head offering triathlon, duathlon and aquabike events in Enticer and Club Standard distances with on-site transition and timing.
A run swim run event at Leighton Beach on 14 November 2026 offering solo or team aquathlon, run only and swim only options across multiple distances and age categories.
An evening triathlon at Champion Lakes with multiple course options, timed adult races, junior events and series placings as part of the Spinifex Sheds Multisport Series.
Pool-based women's triathlon in Bunbury offering short, long and team formats with pool swim rules, age limits, training support and event merchandise.
A riverside triathlon in East Fremantle with sprint, novice and aquabike options along a sheltered Swan River swim, closed-road bike laps and riverside run laps.
Short-format triathlon races for youth and development athletes at Champion Lakes with Enticer distances on 22 November 2026.
Timed club races across triathlon, duathlon, aquathlon, and aquabike formats at Oasis Clubrooms with free entry for members and a $50 permit for non-members.
Club race at Halls Head with Enticer and Club Standard triathlon, duathlon and aquabike options plus online registration and different member entry fees.
Multi-distance triathlon, duathlon and aquabike at Champion Lakes on 29 November 2026 with sprint, bolt and novice courses plus junior and team categories.
December 2026
IRONMAN 70.3 Western Australia in Busselton features a calm Geographe Bay swim, flat bike and run courses and is a World Championship qualifier; registration is sold out.
A coastal IRONMAN triathlon in Busselton featuring a calm Geographe Bay swim, a flat bike route along coast and bushland, and a run that passes the Busselton Jetty.
Multi distance triathlon at Whitford Nodes Park with Sprint, Bolt, AquaBike, Duathlon and kids TinLids options plus junior and state series qualifications.
Experience a multi-lap triathlon along the Rockingham foreshore featuring a shallow water swim and a flat, fast bike course perfect for all community participants.
Multiple triathlon and duathlon formats at Oasis Clubrooms on 13 December 2026; timed races, club members free, non-members pay a $50 permit plus possible $7.50 pool fee.