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Running Calendar Ontario 2025-2026

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Explore the best running races in Ontario for 2025-2026! Our updated list features 183 exciting races across the region. Find your next race in Ontario below and join the running community at these great events!

Half Marathons Marathons Trail Runs Triathlons
December 2025
Dec
13
Sa

BackRoads Festive 5K

5 mi
Dec
13
Sa

Toys for Tots 5km

5 km
Dec
26
Fr

Boxing Day Run - Hamilton

4 mi 10 mi
January 2026
Jan
1
Th

Hangover Hustle Miniest Mini Marathon

5 km
Jan
1
Th

Exhibition Place Resolution Run

5 km
Jan
4
Su

KRRA - 8km Resolution Run

4 km 8 km
Jan
11
Su

New Year's Run Toronto

5 km
Jan
11
Su

New Year's Run Ottawa

5 km
Jan
17
Sa

Polar Paws Trail Race

Trail Run 5 km 10 km 25 km
Jan
17
Sa

Dion Mighty Chickadee Snowshoe Race

Trail Run 7 km
Jan
18
Su

Robbie Burns Day Road Races

4 km 8 km
Jan
24
Sa

Polar Bear Run - Fergus

3 km 5 km 10 km
February 2026
Feb
1
Su

Winterlude Triathlon

Triathlon
Feb
1
Su

Kawartha Lakes Winter Festival

Trail Run 5 km 10 km
Feb
8
Su

Re-Fridgee-Eighter

5 km 8 mi
Feb
15
Su

Embrace Winter Run

3 km 5 km ... Half Marathon Marathon
Feb
15
Su

Valentines 5K - St. Catharines

5 km
Feb
21
Sa

Move Your Paws 5K

5 km
Feb
28
Sa

Polar Rush

Obstacle Run 6 km
March 2026
Mar
1
Su

Chilly Half Marathon