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View all ↓Triathlon in Ontario 2026 - 2027
The most comprehensive list of Ontario Triathlon Events in 2026 - 2027. Discover 100's of US Ontario Triathlon. Find your perfect race here!
Triathlon Ontario 2026 - 2027
Subaru Triathlon Series - Guelph Lake 1
Guelph, ON
Sat 20 Jun 26
Free - $220.10
Lil’ Bones Triathlon
Brantford, ON
Sun 21 Jun 26
Rose City (Welland) - Sat June 27 and Sun June 28
Welland, ON
Sat 27 Jun 26
$103.41 - $209.99
TRi KiDS Triathlon Series MILTON, ON
Milton, ON
Sun 05 Jul 26
Bracebridge - Sat July 11 and Sun July 12
Bracebridge, ON
Sat 11 Jul 26
Free - $204.61
PureKids Triathlon Series Powered by Subway
Windsor, ON
Sun 12 Jul 26
$56.20
Lakeshore Women's Triathlon
Port Elgin, ON
Sat 18 Jul 26
$104.75 - $115.54
Subaru Triathlon Series - Niagara
Grimsby, ON
Sat 18 Jul 26
Free - $198.32
Bluewater Triathlon and Duathlon - 2026
Sarnia, ON
Sat 18 Jul 26
Ironkid Triathlon 2026
Sarnia, ON
Sun 19 Jul 26
Subaru Women's Triathlon Festival
Grimsby, ON
Sat 08 Aug 26
Free - $187.42
Barrie - Sat Aug 8 and Sun Aug 9
Barrie, ON
Sat 08 Aug 26
Free - $189.54
2026 - The PureKids Triathlon Series, Powered by Subway
Leamington, ON
Sun 09 Aug 26
$56.20 - $61.59
Beaton Classic 2026
Greater Sudbury, ON
Sun 09 Aug 26
$18.94 - $135.80
Toronto Island - Sat Aug 15 and Sun Aug 16
Toronto, ON
Sat 15 Aug 26
Free - $189.54
Subaru Triathlon Series - Owen Sound
Owen Sound, ON
Sun 16 Aug 26
Free - $209.21
2026 Petawawa Triathlon
Petawawa, ON
Sun 16 Aug 26
$78.50 - $198.32
XTERRA Sleeping Giant - 2026
Thunder Bay, ON
Sun 16 Aug 26
$66.97 - $207.25
TRi KiDS Triathlon Series NIAGARA (PORT COLBORNE), ON
Port Colborne, ON
Sun 16 Aug 26
$67.60 - $77.41
Sioux Narrows Global Aquabike and Open Water Swim Festival
Kenora District, ON
Sat 22 Aug 26
$78.50 - $274.57
2026 Cornwall Youth Triathlon
Cornwall, ON
Sat 22 Aug 26
$55.00 - $70.00
2026 Cornwall Triathlon - Adult Day
Cornwall, ON
Sun 23 Aug 26
$60.00 - $155.00
Wasaga Beach - Sat Aug 29
Wasaga Beach, ON
Sat 29 Aug 26
Free - $204.61
Subaru Triathlon Series - Guelph Lake 2
Guelph, ON
Sat 05 Sep 26
Free - $198.32
Lakeside - Sat Sept 12 and Sun Sept 13
Lakeside, ON
Sat 12 Sep 26
Free - $211.07
Barrelman Niagara Falls
Welland, ON
Sun 20 Sep 26
$209.21 - $459.73
2026 Triathlon Series Volunteer Portal
Barrie, ON
Sun 20 Sep 26
$7.00 - $28.00
Showing 1-27 of 27 results