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Ultra Marathons Found In Ontario in October
View all ↓Ultra Marathons in Ontario in October 2026
findarace.com is Canada's favourite event discovery site. Check out our list of October 2026 Ultra Marathons in Ontario below.
Race Calendar: Ultra Marathons Found In October
The Rides of Oktoberfest
Kingsville, ON
Sat 03 Oct 26
Free
Manotick Backyard Ultra
Ottawa, ON
Sat 03 Oct 26
$24.03 - $132.96
The Hustle at Pinehurst
Ayr, ON
Sun 04 Oct 26
Free - $514.71
Run The Caves
Warsaw, ON
Sun 04 Oct 26
$13.04 - $228.84
Sticks n' Stones Trail Race 2026
Hamilton, ON
Sat 10 Oct 26
$73.05 - $274.57
Wise Raven Trail Race
Waterloo, ON
Sat 17 Oct 26
$50.81 - $239.63
Long Sault Trail Race & Ultra
Bowmanville, ON
Sat 17 Oct 26
$18.58 - $111.18
Phoenix Trail Races
London, ON
Sat 17 Oct 26
$91.02
TMMC Fall 5 KM Classic 2026
Cambridge, ON
Sun 18 Oct 26
Free - $62.15
The Bad Thing 2026
Auburn, ON
Sat 24 Oct 26
Trick or Trot 2026
Waterloo, ON
Sat 31 Oct 26
Free - $51.26
Horseshoe Valley Hustle Trail & Ultra Challenge
Barrie, ON
Sat 31 Oct 26
$30.44 - $723.89
The Beav Trail Race 2026
Milton, ON
Sat 31 Oct 26
Showing 1-13 of 13 results