Backyard Ultra Races in Ontario
Browse 1 upcoming backyard ultra races in Ontario, with dates, locations, and event details for each listing. Also explore 5K, Road, 10K, 1K, and Trail races in Ontario, or compare options to find your next backyard ultra start line.
- upcoming race
- 1
- next race · 2027
- Jul 10
- listed through · 2027
- Jul 10
Ontario race calendar
July 2027
July 2027: 1 race