Obstacle races (OCR) in Ontario
Obstacle races (OCR) across Ontario: 10 with a confirmed date. Next up: Spartan Race Blue Mountain Trifecta Weekend on October 17, 2026.
Updated daily — every listing links to the organizer's official registration page.
When
10 races listed
- Saturday, October 17, 2026
Spartan Race Blue Mountain Trifecta Weekend
The Blue Mountains, ON · Obstacle (OCR) · 5km / 10km / 21km
- Sunday, October 18, 2026
Race into the Harvest: 5K Obstacle Course by Mastronardi Winery
Kingsville, ON · Obstacle (OCR) · 5km · from 50
- Saturday, May 15, 2027
Spartan Toronto Event Weekend
Orono, ON · Obstacle (OCR) · 5km / 10km
- Saturday, July 10, 2027
The 5K Foam Fest - Kitchener, ON
Kitchener, ON · Obstacle (OCR) · 5km · from 58
- Saturday, July 17, 2027
The 5K Foam Fest - Wasaga Beach, ON
Wasaga Beach, ON · Obstacle (OCR) · 5km · from 58
- Saturday, July 24, 2027
The 5K Foam Fest - London, ON
London, ON · Obstacle (OCR) · 5km · from 58
- Saturday, August 7, 2027
The 5K Foam Fest - Ottawa
Ottawa, ON · Obstacle (OCR) · 5km · from 58
- Saturday, August 21, 2027
Spartan Ottawa Event Weekend
Calabogie, ON · Obstacle (OCR) · 5km / 10km
- Saturday, August 28, 2027
The 5K Foam Fest - Toronto, ON
Uxbridge, ON · Obstacle (OCR) · 5km · from 58
- Saturday, September 11, 2027
Tough Mudder Toronto
Courtland, ON · Obstacle (OCR) · 5km / 15km
New races in Ontario, once a month
Newly listed races, and the registrations closing in the next three weeks. One email a month, one click to leave.
Obstacle races (OCR) in Ontario — FAQ
- How many obstacle races (OCR) are there in Ontario in 2026?
- Obstacle races (OCR) listed for Ontario right now: 10 with a confirmed date. The list refreshes nightly as organizers announce new dates.
- What is the next one in Ontario?
- Spartan Race Blue Mountain Trifecta Weekend in The Blue Mountains on October 17, 2026.
- Which Ontario cities host the most obstacle races (OCR)?
- The Blue Mountains (1), Kingsville (1), Orono (1).