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Duathlons in Ontario 2025 - 2026

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

Duathlons Ontario 2025 - 2026

Cornwall Multisport Club - Spring Duathlon 2025

Long Sault, ON
03 May 25
Free

Subaru Triathlon Series - Milton

Milton, ON
01 Jun 25
Free - $187.42

Subaru Triathlon Series - Guelph Lake 1

Guelph, ON
14 Jun 25
Free - $209.21

Rose City (Welland) - Sat June 21 and Sun June 22

Welland, ON
21 Jun 25
Free - $176.62

Bracebridge - Sat July 12 and Sun July 13

Bracebridge, ON
12 Jul 25
Free - $176.62

Bluewater Triathlon and Duathlon - 2025

Sarnia, ON
19 Jul 25
$13.14 - $116.62

Lakeshore Women's Triathlon

Port Elgin, ON
19 Jul 25
$88.57 - $93.96

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 - $204.61

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

Toronto Island - Sat Aug 16 and Sun Aug 17

Toronto, ON
16 Aug 25
Free - $165.85

Wasaga Beach - Sat Aug 23

Wasaga Beach, ON
23 Aug 25
Free - $176.62

2025 Cornwall Youth Triathlon

Cornwall, ON
23 Aug 25
$35.00 - $45.00

2025 Cornwall Triathlon - Adult Day

Cornwall, ON
24 Aug 25
$35.00 - $600.00

Subaru Triathlon Series - Guelph Lake 2

Guelph, ON
30 Aug 25
Free - $187.42

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
Showing 1-18 of 18 results