2017 - 2018 Ontario Ultramarathon Calendar

Browse our Ultramarathon Calendar for races organized in Ontario among 19 races.

19 races

Pick Your Poison Trail Run

April 29, 2017 The race has already taken place.
Canada / Ontario / Orillia
Ultramarathon
Trail

Seaton Trail Race

May 13, 2017 The race has already taken place.
Canada / Ontario / Pickering
Ultramarathon
Trail

Sulphur Springs Trail Race

May 25, 2017 The race has already taken place.
Canada / Ontario / Ancaster
Ultramarathon
Trail Relay

Sulphur Springs Trail Race

May 27, 2017 The race has already taken place.
Canada / Ontario / Ancaster
Ultramarathon
Trail

Sulphur Springs Trail Race

May 27, 2017 The race has already taken place.
Canada / Ontario / Ancaster
Ultramarathon
Trail Relay

Sulphur Springs Trail Race

May 27, 2017 The race has already taken place.
Canada / Ontario / Ancaster
Ultramarathon
Trail

Conquer the Canuck Marathon Ultra Trail Weekend

June 10, 2017 The race has already taken place.
Canada / Ontario / Cambridge
Ultramarathon
Trail

Niagara Ultra

June 17, 2017 The race has already taken place.
Canada / Ontario / Niagara-on-the-Lake
Ultramarathon
Fast

The North Face Endurance Challenge Ontario

July 15, 2017 The race has already taken place.
Canada / Ontario / Blue Mountain Resort
Ultramarathon
Trail

The North Face Endurance Challenge Ontario

July 15, 2017 The race has already taken place.
Canada / Ontario / Blue Mountain Resort
Ultramarathon
Trail Hilly

Ragnar Trail Cottage Country-ON, Presented by Salomon

September 08, 2017 The race has already taken place.
Canada / Ontario / Oro-Medonte
Ultramarathon
Trail

Haliburton Forest Trail Race

September 09, 2017 The race has already taken place.
Canada / Ontario / Haliburton Forest
Ultramarathon
Trail
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