2017 - 2018 Ontario Ultramarathon Calendar

Browse our Ultramarathon Calendar for races organized in Ontario among 24 races.

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24 races

Pick Your Poison Trail Run

Pick Your Poison 50K Trail Run
April 29, 2017 Race day in 2 months
Canada / Ontario / Orillia
Ultramarathon - 50 kilometers
Trail

Seaton Trail Race

Seaton Trail 50 km Trail
May 13, 2017 Race day in 3 months
Canada / Ontario / Pickering
Ultramarathon - 50 kilometers
Trail

Sulphur Springs Trail Race

200 Mile
May 25, 2017 Race day in 3 months
Canada / Ontario / Ancaster
Ultramarathon - 200 miles
Trail Relay

Sulphur Springs Trail Race

100 Mile
May 27, 2017 Race day in 3 months
Canada / Ontario / Ancaster
Ultramarathon - 100 miles
Trail Relay

Sulphur Springs Trail Race

50K
May 27, 2017 Race day in 3 months
Canada / Ontario / Ancaster
Ultramarathon - 50 kilometers
Trail

Sulphur Springs Trail Race

50 Mile
May 27, 2017 Race day in 3 months
Canada / Ontario / Ancaster
Ultramarathon - 50 miles
Trail

Conquer the Canuck Marathon Ultra Trail Weekend

50 km
June 10, 2017 Race day in 4 months
Canada / Ontario / Cambridge
Ultramarathon - 50 kilometers
Trail

Niagara Ultra

50 Km
June 17, 2017 Race day in 4 months
Canada / Ontario / Niagara-on-the-Lake
Ultramarathon - 50 kilometers
Fast

Sears Great Canadian Run - Toronto

No race in 2016
Canada / Ontario / Toronto
Ultramarathon - 141 kilometers
Fund raising Relay

The North Face Endurance Challenge Ontario

The North Face Endurance Challenge Ontario 50 Km
July 16, 2016 The race has already taken place.
Canada / Ontario / Blue Mountain Resort
Ultramarathon - 50 kilometers
Trail

The North Face Endurance Challenge Ontario

The North Face Endurance Challenge Ontario 50 Mile
July 16, 2016 The race has already taken place.
Canada / Ontario / Blue Mountain Resort
Ultramarathon - 50 miles
Hilly Trail

Creemore Vertical Challenge

50K
August 06, 2016 The race has already taken place.
Canada / Ontario / Creemore
Ultramarathon - 50 kilometers
Trail Mountain

Creemore Vertical Challenge

75K
August 06, 2016 The race has already taken place.
Canada / Ontario / Creemore
Ultramarathon - 75 kilometers
Trail Mountain

Iroquoia Trail Test

Iroquoia Trail Test - 50K
August 20, 2016 The race has already taken place.
Canada / Ontario / Kilbride
Ultramarathon - 50 kilometers
Hilly Trail

Haliburton Forest Trail Race

Haliburton Forest Trail 100 Mile Race
September 10, 2016 The race has already taken place.
Canada / Ontario / Haliburton Forest
Ultramarathon - 100 miles
Trail