0004
Ultra Marathons Found In Ontario in September
View all ↓Ultra Marathons in Ontario in September 2025
findarace.com is Canada's favourite event discovery site. Check out our list of September 2025 Ultra Marathons in Ontario below.
Race Calendar: Ultra Marathons Found In September
Haliburton Forest Trail Race 2025
Haliburton, ON
06 Sep 25
$60.98 - $223.43
Welland Canal Open Water Swim
Welland, ON
07 Sep 25
$88.57 - $104.75
Monster of Mazinaw Trail Race 2025
Cloyne, ON
20 Sep 25
$78.50 - $100.28
The Wolfpack Ultra Championship
Burlington, ON
20 Sep 25
$56.20 - $115.54
Showing 1-4 of 4 results