Half Marathon Calendar Ontario 2025-2026

Aug

24

Sunday

Calabogie Peaks Trail Run

Calabogie, Ontario

Trail Run 10 km 21 km

Sep

5-26

Fr - Fr

Canada Army Run

Ottawa, Ontario

5 km 10 km ... 26 km 36 km

Sep

7

Sunday

Georgina Marathon

Georgina, Ontario

5 km 10 km 21 km 42 km

Sep

7

Sunday

Sudbury Masters Ramsey Tour

Greater Sudbury, Ontario

5 km 21 km

Sep

13

Saturday

Ajax Race Weekend

Ajax, Ontario

5 km 10 km 21 km

Sep

13

Saturday

North Bay Road Race

North Bay, Ontario

Trail Run 5 km 10 km 21 km

Sep

13-14

Sa - Su

Tobermory Trail Race

Tobermory, Ontario

Trail Run 5 km 7 km 21 km 42 km

Sep

13

Saturday

Caps off Run Club Bash

St. Thomas, Ontario

21 km

Sep

14

Sunday

Windsor Waterfront Half Marathon

Windsor, Ontario

5 km 21 km

Sep

20

Saturday

That Dam Hill

Byron, Ontario

5 km 21 km ... 12 hr 24 hr

Sep

21

Sunday

River Run Half Marathon - Chatham-Kent

Chatham-Kent, Ontario

5 km 10 km 21 km

Sep

21

Sunday

Habitat for Humanity Chatham-Kent River Run

Chatham-Kent, Ontario

5 km 10 km 21 km

Sep

27

Saturday

Cedar Ridge Hilly Half-Marathon

McArthurs Mills, Ontario

10 km 21 km

Sep

28

Sunday

Railway City Road Races - St. Thomas Ontario Half Marathon, 10 km, 5 km run and 5 km walk, 1 km for the kids

St. Thomas, Ontario

5 km 10 km 21 km

Sep

28

Sunday

Steelway Railway City Road Races

St. Thomas, Ontario

5 km 10 km 21 km

Sep

28

Sunday

Springbank Road Races

London, Ontario

5 km 21 km

Sep

28

Sunday

Run for the Grapes Half Marathon

Lincoln, Ontario

5 km 21 km

Sep

28

Sunday

Albion Ascent Trail Race

Hamilton, Ontario

Trail Run 5 km 10 km 21 km

Sep

28

Sunday

Run4Health

Walkerton, Ontario

5 km 10 km 21 km

Oct

5

Sunday

Oakville Half Marathon

Oakville, Ontario

5 km 10 km 21 km