2015 – 2016 Ontario Race Calendar

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Ontario among 232 races.

232 races

Science Chase

  • May 09, 2015 - 10:00
  • North America | Canada | Ontario | Toronto
  • 10k race
  • Team Road Running

Seaton Trail Race

Seaton Trail 15 km Trail Race
  • May 09, 2015
  • North America | Canada | Ontario | Pickering
  • Half Marathon to Full Marathon - 15 kilometers
  • Trail

Seaton Trail Race

Seaton Trail 25 km Trail Race
  • May 09, 2015 - 07:00
  • North America | Canada | Ontario | Pickering
  • Half Marathon to Full Marathon - 25 kilometers
  • Trail

Seaton Trail Race

Seaton Trail 50 km Trail
  • May 09, 2015 - 07:00
  • North America | Canada | Ontario | Pickering
  • Ultramarathon - 50 kilometers
  • Trail

SudburyROCKS!!! Marathon

Continental Insulation 10km
  • May 10, 2015 - 08:35
  • North America | Canada | Ontario | Greater Sudbury
  • 10k race
  • Boston Qualifier Walk Charity Relay

SudburyROCKS!!! Marathon

Ionic Engineering 5K Walk/Run
  • May 10, 2015 - 09:00
  • North America | Canada | Ontario | Greater Sudbury
  • Shorter than 10 km race - 5 kilometers
  • Boston Qualifier Walk Charity Relay

SudburyROCKS!!! Marathon

Riverside Cardiac Clinic Half Marathon
  • May 10, 2015 - 07:55
  • North America | Canada | Ontario | Greater Sudbury
  • Half Marathon
  • Boston Qualifier Walk Charity Relay

SudburyROCKS!!! Marathon

SudburyROCKS!!! Marathon
  • May 10, 2015 - 08:00
  • North America | Canada | Ontario | Greater Sudbury
  • Marathon
  • Boston Qualifier Walk Charity Relay

Tamarack Ottawa Marathon

HTG Sports 5K
  • May 23, 2015 - 16:00
  • North America | Canada | Ontario | Ottawa
  • Shorter than 10 km race - 5 kilometers
  • Road Running

Tamarack Ottawa Marathon

Lowertown Brewery 10K
  • May 23, 2015 - 18:30
  • North America | Canada | Ontario | Ottawa
  • 10k race
  • Road Running

Tamarack Ottawa Marathon

Ottawa 2K
  • May 23, 2015 - 15:00
  • North America | Canada | Ontario | Ottawa
  • Shorter than 10 km race - 2 kilometers
  • Road Running

Sulphur Springs Trail Run

Sulphur Springs 100 Mile Trail Run
  • May 23, 2015 - 06:00
  • North America | Canada | Ontario | Ancaster
  • Ultramarathon - 100 miles
  • Trail Relay

Sulphur Springs Trail Run

Sulphur Springs 10K Trail Run
  • May 23, 2015 - 08:15
  • North America | Canada | Ontario | Ancaster
  • 10k race
  • Trail

Sulphur Springs Trail Run

Sulphur Springs 25K Trail Run
  • May 23, 2015 - 07:30
  • North America | Canada | Ontario | Ancaster
  • Half Marathon to Full Marathon - 25 kilometers
  • Trail

Sulphur Springs Trail Run

Sulphur Springs 50K Trail Run
  • May 23, 2015 - 07:30
  • North America | Canada | Ontario | Ancaster
  • Ultramarathon - 50 kilometers
  • Trail