New South Wales Triathlon, Aquathon & Duathlon Calendar
A list of upcoming triathlons (swim, bike & run), duathlons (bike & run) and aquathons (swim & run) in NSW.
See also our NSW Fun Runs & Running Events Calendar and use the search function to filter events by keywords, location, date range and event type.
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Events 1 to 38 of 38

Triathlon Hawks Nest
Saturday, 29 November 2025Hawks Nest, NSW
Yamba Triathlon
Sunday, 30 November 2025Whiting Beach, Yamba, NSW
BTC Women’s Triathlon
Sunday, 7 December 2025Obelisk Beach, Mosman, Sydney, NSW
Callala Triathlon Festival
Saturday, 13 December 2025Callala Beach Community Hall, Jervis Bay, NSW
Panthers Tri Club Triathlon & Duathlon: December
Saturday, 13 December 2025Sydney International Regatta Centre, Penrith, Sydney, NSW
Panthers Tri Club Triathlon & Duathlon: January
Saturday, 10 January 2026Sydney International Regatta Centre, Penrith, Sydney, NSW
Echuca Moama Triathlon & Multi Sport Festival
Saturday, 17 January 2026 to Sunday, 18 January 2026Echuca, VIC
MMJ Aquathon
Monday, 26 January 2026Wollongong Harbour, Wollongong, NSW
GYG Coffs Harbour Triathlon Festival
Saturday, 31 January 2026 to Sunday, 1 February 2026Coffs Harbour, NSW
Island Triathlon Festival
Saturday, 31 January 2026 to Sunday, 1 February 2026Griffith Park East, Stockton, NSW
Eastern Triathlon Series: Race 2
Saturday, 7 February 2026Heffron Park, Maroubra, NSW
Trial Bay Nestle Junior Triathlon
Saturday, 7 February 2026Trial Bay Beach, South West Rocks, NSW
Triathlon Batemans Bay Festival
Saturday, 7 February 2026Tomakin, NSW
BTC Triathlon Series 2025/2026: Race 3
Sunday, 8 February 2026Obelisk Beach, Mosman, Sydney, NSW
Trial Bay Triathlon
Sunday, 8 February 2026Trial Bay Gaol, South West Rocks, NSW
AAA Xtreme Triathlon
Saturday, 14 February 2026Kosciuszko National Park, NSW
Tweed Coast Enduro
Saturday, 14 February 2026Philip Street Park, Pottsville, NSW
Panthers Tri Club Triathlon & Duathlon: February
Saturday, 28 February 2026Sydney International Regatta Centre, Penrith, Sydney, NSW
Eastern Triathlon Series: Race 3
Sunday, 1 March 2026Heffron Park, Maroubra, NSW
Kingscliff Triathlon March
Sunday, 1 March 2026Faulks Park, Kingscliff, NSW
BTC Triathlon Series 2025/2026: Race 4
Sunday, 8 March 2026Obelisk Beach, Mosman, Sydney, NSW
Lake Mac Triathlon Festival
Sunday, 8 March 2026Lake Macquarie, NSW
BTC Junior's Triathlon
Sunday, 15 March 2026Balmoral Beach, Mosman, Sydney, NSW
Panthers Tri Club Triathlon & Duathlon: March
Sunday, 22 March 2026Sydney International Regatta Centre, Penrith, Sydney, NSW
Husky Ultra
Wednesday, 25 March 2026 to Sunday, 29 March 2026Huskisson, NSW
Husky Triathlons
Saturday, 28 March 2026 to Sunday, 29 March 2026Huskisson, NSW
Swimrun Australia: Sydney East
Saturday, 18 April 2026Rose Bay, NSW
Triathlon Wollongong Festival
Sunday, 19 April 2026Wollongong, NSW
Byron Bay Triathlon & Multisport Festival
Sunday, 26 April 2026Byron Bay, NSW
Panthers Tri Club Triathlon & Duathlon: April
Sunday, 26 April 2026Sydney International Regatta Centre, Penrith, Sydney, NSW
IRONKIDS Western Sydney
Saturday, 2 May 2026Sydney International Regatta Centre, Castlereagh, NSW
TreX Port Stephens
Saturday, 2 May 2026Fingal Bay, Port Stephens, NSW
IRONMAN 70.3 Western Sydney
Sunday, 3 May 2026Sydney International Regatta Centre, Penrith, NSW
Nail Can Hill Run
Sunday, 3 May 2026Albury, NSW
Shire Run Carnival & Aquathlon
Saturday, 9 May 2026Kurnell, NSW
Triathlon Port Stephens Festival
Saturday, 23 May 2026One Mile Beach, Port Stephens, NSW
IRONMAN 70.3 Port Macquarie
Sunday, 18 October 2026Port Macquarie, NSW
IRONMAN Australia
Sunday, 18 October 2026Port Macquarie, NSW
Events 1 to 38 of 38