How many half marathons are there in Markham?

1 upcoming, and 21 more within 100km if you are willing to drive. The next one is PHM Run for the Residents on Saturday, October 3, 2026. Rebuilt from the race calendar daily.

When is the next half marathon in Markham?

PHM Run for the Residents, Saturday, October 3, 2026. Open it for the start time, distances and the official registration link.

No. Every listing links straight to the organizer's own registration page. RaceFinder never takes signups or a cut.

Half marathons in Markham

1 upcoming in Markham, and 21 more within 100km. Every one links to the organizer's official registration page.

5K races in Markham 10K races in Markham Marathons in Markham Half marathons across Ontario

PHM Run for the Residents
ON · Road · 21km / 6km · starts 8 a.m.

Within 100km of Markham

Sorted by how far you would have to drive.

2026 TCS Toronto Waterfront Marathon
Toronto, ON · Road · 5km / 42km / 21km · starts 8 a.m.
23 km
Nemo Memorial Run - Run for the Heroes.
Toronto, ON · Road · 5km / 10km / 21km / 42km · starts 12 p.m.
23 km
Run to End Child Hunger
Toronto, ON · Road · 1mi / 5km / 10km / 21km · starts 12 p.m.
23 km
2027 Beneva Mississauga Marathon
Mississauga, ON · Road · 42km / 21km / 10km / 5km · starts 7:30 a.m.
39 km
Georgina Spring Fling 2027
Georgina, ON · Road · 42km / 21km / 10km / 5km · starts 7:30 a.m.
43 km
Georgina Marathon & Half-Marathon
Jacksons Point, ON · Road · 42km / 10km / 21km / 5km · starts 7 a.m.
52 km
Long Sault Trail Race & Ultra
Bowmanville, ON · Trail · 7km / 14km / 21km / 2km · starts 8 a.m.
52 km
Oakville 21.1
Oakville, ON · Road · 21km / 10km / 5km · starts 7:30 a.m.
53 km
24 Hour To Empower Running Challenge
Barrie, ON · Road · 5km / 10km / 15km / 20km · starts 10 a.m.
66 km
2027 Chilly Half Marathon
Burlington, ON · Road · 21km · starts 10:05 a.m.
70 km
XACT Kawartha Sun Run 2027
Kawartha Lakes, ON · Road · 21km / 10km / 5km · starts 7:30 a.m.
73 km
Run for the Grapes Half Marathon & 5K
Lincoln, ON · Road · 5km / 21km · starts 8:30 a.m.
76 km
Caffeine Run Toronto (Hamilton)
Hamilton, ON · Road · 5km / 10km / 21km · starts 7 a.m.
79 km
Great Rift Community Half Marathon
Hamilton, ON · Road · 5km / 21km · starts 9 a.m.
79 km
2026 Hamilton Marathon Road2Hope
Hamilton, ON · Road · 5km / 1km / 10km / 21km · starts 8 a.m.
79 km
Hamilton Road2hope Marathon
Hamilton, ON · Road · 1km / 5km / 10km
79 km
Big Little Run 2026
Guelph, ON · Road · 5km / 10km / 21km · starts 8 a.m.
81 km
Polar Bear Run - 2027
Fergus, ON · Trail · 10km / 5km / 21km · starts 10 a.m.
85 km
U.S. & International Registrants, Niagara Falls 10k, Half & Marathon 2026
Niagara Falls, ON · Road · 42km / 21km / 10km · starts 7:30 a.m.
86 km
Niagara Falls 10k, Half & Marathon 2026
Niagara Falls, ON · Road · 42km / 21km / 10km · starts 7:30 a.m.
86 km

1 more — sort everything by distance from you.

Half marathons in Markham — FAQ

How many half marathons are there in Markham?: 1 upcoming, and 21 more within 100km if you are willing to drive. The next one is PHM Run for the Residents on Saturday, October 3, 2026. Rebuilt from the race calendar daily.
When is the next half marathon in Markham?: PHM Run for the Residents, Saturday, October 3, 2026. Open it for the start time, distances and the official registration link.
Do I register here?: No. Every listing links straight to the organizer's own registration page. RaceFinder never takes signups or a cut.

Missing a race? Add it. Or browse every race in Markham and half marathons across Canada.