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Get the appOntario has 42 upcoming Triathlon events across distances like 0K, 1K, 2K, 3K, 4K, 5K, 6K, 7K, 8K, 10K, 11K, 12K, 13K, 15K, 16K, 18K, 20K, 21K, 22K, 25K, 26K, 27K, 28K, 31K, 32K, 35K, 40K, 42K, 43K, 46K, 51K, 52K, 77K, 113K, 185K. Recent additions include TRi KiDS Triathlon Series MILTON, ON, IRONMAN 70.3 Muskoka, Stonetown Triathlon.
42 events
5
TRi KiDS Triathlon Series MILTON, ON
Sun, Jul 5, 2026Milton, Canada
5
IRONMAN 70.3 Muskoka
Sun, Jul 5, 2026Huntsville, Canada
5
Stonetown Triathlon
Sun, Jul 5, 2026St. Marys, Canada
11
Bracebridge Triathlon and Duathlon
Sat, Jul 11, 2026Bracebridge, Canada
11
Bracebridge Triathlon and Duathlon
Sat, Jul 11, 2026Bracebridge, Canada
18
Bluewater Triathlon and Duathlon - 2026
Sat, Jul 18, 2026Sarnia, Canada
18
Subaru Triathlon Series - Niagara
Sat, Jul 18, 2026Grimsby, Canada
18
Lakeshore Women's Triathlon
Sat, Jul 18, 2026Port Elgin, Canada
18
Lakeshore Women's Triathlon
Sat, Jul 18, 2026Port Elgin, Canada
18
Subaru Triathlon Series - Niagara
Sat, Jul 18, 2026Grimsby, Canada
18
Bluewater Triathlon and Duathlon - 2026
Sat, Jul 18, 2026Brights Grove, Canada
18
Lakeshore Women's Triathlon
Sat, Jul 18, 2026Port Elgin, Canada
19
Mudskipper Parry Sound and the Parry Sound Open Water Swim
Sun, Jul 19, 2026Parry Sound, Canada
19
K-Town Triathlon and Duathlon
Sun, Jul 19, 2026Kingston, Canada
19
Mudskipper Ontario SwimRun Championships and Parry Sound Open Water Swim
Sun, Jul 19, 2026Parry Sound, Canada
2
IRONMAN Canada-Ottawa
Sun, Aug 2, 2026Ottawa, Canada
8
Barrie Triathlon, Duathlon and Kids of Steel
Sat, Aug 8, 2026Barrie, Canada
9
2026 - The PureKids Triathlon Series, Powered by Subway
Sun, Aug 9, 2026Leamington, Canada
9
Thousand Islands Triathlon & Runs
Sun, Aug 9, 2026Brockville, Canada
9
Treescape Chemong Lake Triathlon
Sun, Aug 9, 2026Ennismore, Canada
9
2026 - The PureKids Triathlon Series, Powered by Subway
Sun, Aug 9, 2026Leamington, Canada
16
Subaru Triathlon Series - Owen Sound
Sun, Aug 16, 2026Owen Sound, Canada
16
Mudskipper Canadian SwimRun Championships - Milton
Sun, Aug 16, 2026Milton, Canada
16
Subaru Triathlon Series - Owen Sound
Sun, Aug 16, 2026Owen Sound, Canada
16
Petawawa Triathlon 2026
Sun, Aug 16, 2026Petawawa, Canada
16
XTERRA Sleeping Giant - 2026
Sun, Aug 16, 2026Thunder Bay, Canada
16
Mudskipper Canadian SwimRun Championships - Milton and the Milton Open Water Swim
Sun, Aug 16, 2026Milton, Canada
16
XTERRA Sleeping Giant - 2026
Sun, Aug 16, 2026Thunder Bay, Canada
16
Mudskipper SwimRun Milton and the Milton Open Water Swim
Sun, Aug 16, 2026Milton, Canada
23
2026 Cornwall Triathlon - Adult Day
Sun, Aug 23, 2026Cornwall, Canada
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