Ultra Marathon Races in Ontario, Canada

Map of Ultra Marathons in Ontario

Dirty Girls

Solo Race Race ran for specific time not distance

Mansfield, Ontario, Canada
The Dirty Girls ultra marathon is a 12 hr, 24 hr, and 48 hr timed event on a 5 mile trails loop.


Solo Race Race takes place over multi-days

Waterloo, Ontario, Canada
The ENDURrun is a tough 7 stage, 8 day event that totals 160 km. Stages cover half marathon event, trails run, hills and timed trials.

Haliburton Forest Trail Race

Solo Race Team/Relay Race Eco friendly race

Ontario, Canada
The Haliburton Forest Trail Race is an ultra marathon and 100 mile relay race through the Haliburton Forest & Wild Life Reserve.

Horror Hill Trail Races

Solo Race Race ran for specific time not distance

Waterloo, Ontario, Canada
The Horror Hill Trail Races is a 6 hour Ultra trail race.

Kingston Self-Transcendence 6-Hour Race

Solo Race Race ran for specific time not distance

Kingston, Ontario, Canada
The Kingston Self-Transcendence 6-Hour Race is a 6 hour timed event on an 880 metre paved loop along Lake Ontario and around the walls of Fort Frederick.

Laura Secord Memorial

Solo Race Potential to be running at night

St. Catharines, Ontario, Canada
The Laura Secord Memorial 100 km ultra marathon follows the Bruce Trail route in the Niagara Region of Ontario, Canada.

Limberlost Challenge

Solo Race

Huntsville, Ontario, Canada
The Limberlost Challenge is a 56 km ultra marathon ran through the Limberlost Forest and Wildlife Reserve near Huntsville, Ontario, Canada.

Niagara Ultra Races

Solo Race

Niagara-on-the-Lake, Ontario, Canada
The Niagara Ultra Races following the Niagara River Parkway from Niagara-on-the-Lake to Niagara Falls and back.

Pick Your Poison

Solo Race

Orillia, Ontario, Canada

Run Off-the-Grid

Solo Race Eco friendly race

North Bay, Ontario, Canada
The Run Off-the-Grid ultra marathon is a 50 km eco friendly ultra ran on forest trails in Northern Ontario near North Bay.

Seaton Trail

Solo Race

Pickering, Ontario, Canada
The Seaton Trail ultra marathon is a 50 km along the scenic Seaton Trail in the Pickering area of Ontario, Canada.

Self-Transcendence Ultra Classic

Solo Race Race ran for specific time not distance

Ottawa, Ontario, Canada
The Self-Transcendence Ultra Classic is a 6 hour, 12 hour and 24 hour timed event ran on a 400 metre indoor track in Ottawa, Ontario, Canada.

Sulphur Springs Trail Run

Solo Race

Hamilton, Ontario, Canada
The Sulphur Springs Trail Run follows the Sulphur Springs trail through the Dundas Valley Conservation Area in the Hamilton area of Ontario, Canada.

That Dam Hill

Solo Race Race ran for specific time not distance

London, Ontario, Canada
That Dam Hill is a 3 hr, 6 hr, 12 hr and 50 miles ultra marathon in London Ontario, Canada.

Vulture Bait Trail Race

Solo Race

London, Ontario, Canada
The Vulture Bait Trail Race is a 50 km ultra marathon around Fanshawe Reservoir near London, Ontario, Canada.