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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 310 exciting races across the region. Find your next race in Ontario below and join the running community at these great events!

December 2025
Dec
6
Saturday

Santa Shuffle Fun Run

5 km
Dec
6
Saturday

Santa Shuffle Fun Run & Elf Walk - Toronto

5 km
Dec
6
Saturday

Santa Shuffle Fun Run & Elf Walk - Hamilton

5 km
Dec
6
Saturday

Santa Shuffle Fun Run & Elf Walk - Kingston

5 km
Dec
6
Saturday

Santa Shuffle Fun Run & Elf Walk - Sudbury

5 km
Dec
7
Sunday

BlackToe Holiday 10k

10 km
Dec
13
Saturday

BackRoads Festive 5K

8 km
Dec
26
Friday

Boxing Day Run - Hamilton

4 mi 10 mi
February 2026
Feb
1
Sunday

Winterlude Triathlon

Triathlon
Feb
8
Sunday

Re-Fridgee-Eighter

5 km 8 mi
Feb
15
Sunday

Embrace Winter Run

3 km 5 km ... 21 km 42 km
March 2026
Mar
1
Sunday

Chilly Half Marathon

21 km
Mar
7
Saturday

cone5togo

5 km
Mar
14
Saturday

Frigid 10K

5 km 10 km
April 2026
Apr
18
Saturday

endurRACE

5 km 8 km
Apr
19
Sunday

Her Majesty's Royal Races

3 km 5 km
May 2026
May
3
Sunday

Georgina Spring Fling

5 km 10 km 21 km 42 km
May
3
Sunday

Toronto Marathon

5 km 10 km 21 km 42 km
May
9
Saturday

Run for Women - Waterloo

5 km 10 km
May
10
Sunday

Mothers Day Flower Fun Run

5 km
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