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Triathlon in Ontario 2025 - 2026

The most comprehensive list of Ontario Triathlon Events in 2025 - 2026. Discover 100's of US Ontario Triathlon. Find your perfect race here!

Triathlon Ontario 2025 - 2026

Bracebridge - Sat July 12 and Sun July 13

Bracebridge, ON
12 Jul 25
Free - $182.00

PureKids Triathlon Series Powered by Subway

Windsor, ON
13 Jul 25
$56.20

Bluewater Triathlon and Duathlon - 2025

Sarnia, ON
19 Jul 25

Lakeshore Women's Triathlon

Port Elgin, ON
19 Jul 25

Subaru Triathlon Series - Owen Sound

Owen Sound, ON
20 Jul 25
Free - $209.21

K-Town (Kingston) - Sun July 20

Kingston, ON
20 Jul 25
Free - $209.99

Ironkid Triathlon 2025

Sarnia, ON
20 Jul 25

Cornwall Multisport Club - Open Water Swim 2025

Cornwall, ON
25 Jul 25
$10.00

Toronto Triathlon Festival

Toronto, ON
27 Jul 25

Subaru Triathlon Series - Niagara

Grimsby, ON
09 Aug 25
Free - $187.42

Barrie - Sat Aug 9 and Sun Aug 10

Barrie, ON
09 Aug 25
Free - $165.85

Beaton Classic 2025

Greater Sudbury, ON
10 Aug 25
$18.44 - $164.10

Toronto Island - Sat Aug 16 and Sun Aug 17

Toronto, ON
16 Aug 25
Free - $165.85

TRi KiDS Triathlon Series NIAGARA (PORT COLBORNE), ON

Port Colborne, ON
17 Aug 25
$66.51 - $76.32

2025 Petawawa Triathlon

Petawawa, ON
17 Aug 25
$78.50 - $198.32

Wasaga Beach - Sat Aug 23

Wasaga Beach, ON
23 Aug 25
Free - $176.62

2025 Cornwall Youth Triathlon

Cornwall, ON
23 Aug 25
$45.00 - $60.00

2025 Cornwall Triathlon - Adult Day

Cornwall, ON
24 Aug 25
$40.00 - $600.00

Subaru Women's Triathlon Festival

Grimsby, ON
24 Aug 25
Free - $176.53

Apex ONEWAY

Greater Sudbury, ON
24 Aug 25
$24.03 - $67.60

Subaru Triathlon Series - Guelph Lake 2

Guelph, ON
30 Aug 25
Free - $187.42

TRi KiDS Triathlon Series MILTON, ON

Milton, ON
31 Aug 25

Lakeside - Sat Sept 6 and Sun Sept 7

Lakeside, ON
06 Sep 25
Free - $183.08

Cornwall Multisport Club - Fall Duathlon 2025

Long Sault, ON
13 Sep 25
Free

Barrelman Niagara Falls

Welland, ON
14 Sep 25
$405.28 - $503.30
Showing 1-25 of 25 results