Races by location and type
Half Marathon Races in Ontario
Browse upcoming half marathon races in Ontario, with race dates, distances, locations, and registration details.
20 races listed
Tamarack Ottawa Race Weekend 2026
May 23, 2026
Ottawa, Ontario
Half Marathon10K2K5K+2
Pelee Island Winery Half Marathon 2026
May 30, 2026
Pelee Island, Ontario
Half Marathon
2026 RCAF Run
Jun 5, 2026
Ottawa, ON
3K5K10KHalf Marathon
The Don McMaster Memorial 12 Mile Creek Trail Half Marathon & 7k 2026
Jun 6, 2026
St. Catharines, ON
7KHalf Marathon
Honda Waterfront Run Barrie 2026
Jun 7, 2026
Barrie, ON
10K5KHalf Marathon
2026 Look Out Trail Race
Jun 13, 2026
North Bay, ON
7K14KHalf Marathon2K
Kawartha Sun Run 2026
Jun 14, 2026
Fenelon Falls, Ontario
10K5KHalf Marathon
Community Strong Race Weekend 2026
Jun 20, 2026
Sault Ste. Marie, Ontario
10KMarathonHalf Marathon5K+1
Niagara Ultra 2026
Jun 20, 2026
Niagara on the Lake, ON
10K50K80KHalf Marathon+2
2026 Whiskey Run London
Jun 27, 2026
London, ON
5K10KHalf Marathon
2026 Whiskey Run Toronto
Jul 5, 2026
Hamilton, ON
5K10KHalf Marathon
The 2026 ENDURrun Prelim
Jul 13, 2026
Waterloo, Ontario
10K5 MilesHalf Marathon10.4K+2
Falling Water Trail Marathon/ Half Marathon 2026
Aug 8, 2026
Eugenia, Ontario
63.3KHalf MarathonMarathon
WINDSOR WATERFRONT HALF MARATHON & 5KM 2026
Sep 13, 2026
Windsor, ON
Half Marathon5K
2026 Canada Army Run / Course de lArmée du Canada
Sep 20, 2026
Ottawa, ON
5K10K21KHalf Marathon
2026 Great Rift Community Half Marathon
Sep 27, 2026
Hamilton, ON
5KHalf Marathon
TCS Toronto Waterfront Marathon 2026
Oct 17, 2026
Toronto, ON
Half Marathon5KMarathon
2026 Niagara Falls 10k, Half & Marathon
Oct 25, 2026
Niagara Falls, ON
MarathonHalf Marathon10K
2026 U.S. & International Registrants, Niagara Falls 10k, Half & Marathon
Oct 25, 2026
Niagara Falls, ON
MarathonHalf Marathon10K
2026 Hamilton Marathon Road2Hope
Oct 31, 2026
Hamilton, ON
1K5K10KHalf Marathon+1
More race types in Ontario
109 races
5K
89 races
Road
52 races
1K
49 races
10K
34 races
Trail
13 races
2K
10 races
Marathon
9 races
3K
6 races
8K
5 races
25K
5 races
50K
4 races
200m
4 races
Obstacle
3 races
15K
3 races
2.5K
3 races
80K
3 races
Cross Country
3 races
Mixed
3 races
Ultra
2 races
20K
2 races
21K
2 races
400m
2 races
7.5K
2 races
7K
1 race
0.25K
1 race
0.2K
1 race
0.6K
1 race
1 Mile
1 race
1.2K
1 race
1.6K
1 race
10.4K
1 race
100 Miles
1 race
100K
1 race
100m
1 race
130K
1 race
14K
1 race
2.1K
1 race
2.3K
1 race
21.1K
1 race
24.6K
1 race
25.6K
1 race
26.5K
1 race
40K
1 race
4K
1 race
5 Miles
1 race
53K
1 race
6.5K
1 race
60K
1 race
63.3K
1 race
65K
1 race
6K
1 race
800m
1 race
9K
1 race
Fun Run
1 race
Fun Run / Charity
1 race