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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
The Springbank Sprint
London, ON
Sat 04 Apr 26
$7.69 - $65.42
Drumheller Wild Rose Women's Triathlon and Walk/Run
Drumheller, AB
Sun 31 May 26
$66.71 - $302.59
Subaru Triathlon Series - Milton
Milton, ON
Sun 07 Jun 26
Free - $187.42
Gravenhurst - Sat June 13 and Sun June 14
Gravenhurst, ON
Sat 13 Jun 26
Free - $204.61
Subaru Triathlon Series - Guelph Lake 1
Guelph, ON
Sat 20 Jun 26
Free - $198.32
Lil’ Bones Triathlon
Brantford, ON
Sun 21 Jun 26
$73.05
Rose City (Welland) - Sat June 27 and Sun June 28
Welland, ON
Sat 27 Jun 26
Free - $183.08
Bracebridge - Sat July 11 and Sun July 12
Bracebridge, ON
Sat 11 Jul 26
Free - $183.08
Subaru Triathlon Series - Niagara
Grimsby, ON
Sat 18 Jul 26
Free - $187.42
Bluewater Triathlon and Duathlon - 2026
Sarnia, ON
Sat 18 Jul 26
$13.53 - $120.64
Ironkid Triathlon 2026
Sarnia, ON
Sun 19 Jul 26
Barrie - Sat Aug 8 and Sun Aug 9
Barrie, ON
Sat 08 Aug 26
Free - $168.01
Subaru Women's Triathlon Festival
Grimsby, ON
Sat 08 Aug 26
Toronto Island - Sat Aug 15 and Sun Aug 16
Toronto, ON
Sat 15 Aug 26
Free - $168.01
Subaru Triathlon Series - Owen Sound
Owen Sound, ON
Sun 16 Aug 26
Free - $198.32
XTERRA Sleeping Giant - 2026
Thunder Bay, ON
Sun 16 Aug 26
$66.97 - $191.06
Wasaga Beach - Sat Aug 29
Wasaga Beach, ON
Sat 29 Aug 26
Free - $183.08
Subaru Triathlon Series - Guelph Lake 2
Guelph, ON
Sat 05 Sep 26
Free - $187.42
Lakeside - Sat Sept 12 and Sun Sept 13
Lakeside, ON
Sat 12 Sep 26
Free - $189.54
Barrelman Niagara Falls
Welland, ON
Sun 20 Sep 26
$394.39 - $437.95
Showing 1-20 of 20 results