Half marathons in Markham
1 upcoming in Markham, and 16 more within 100km. Every one links to the organizer's official registration page.
More half marathons near Markham
Everything within 100km, sorted by how far you would have to drive.
- Sunday, October 18, 202623 km
2026 TCS Toronto Waterfront Marathon
Toronto, ON · Road · 42km / 21km / 5km / 1km · starts 8 a.m.
- Friday, November 27, 202623 km
Nemo Memorial Run - Run for the Heroes.
Toronto, ON · Road · 42km / 21km / 10km / 5km · starts 12 p.m. · from $29
- Thursday, December 31, 202623 km
Run to End Homelessness
Toronto, ON · Road · 42km / 21km / 10km / 5km · starts 12 p.m. · from $29
- Thursday, December 31, 202623 km
Run to End Child Hunger
Toronto, ON · Road · 42km / 21km / 10km / 5km · starts 12 p.m. · from $40
- Sunday, April 25, 202739 km
2027 Beneva Mississauga Marathon
Mississauga, ON · Road · 42km / 21km / 10km / 5km · starts 7:30 a.m.
- Sunday, May 2, 202743 km
Georgina Spring Fling 2027
Georgina, ON · Road · 42km / 21km / 10km / 5km · starts 7:30 a.m. · from $76
- Saturday, October 17, 202652 km
Long Sault Trail Race & Ultra
Bowmanville, ON · Trail · 21km / 14km / 7km / 2km · starts 8 a.m. · from $95
- Sunday, October 4, 202653 km
Oakville 21.1
Oakville, ON · Road · 21km / 10km / 5km · starts 7:30 a.m. · from $70
- Sunday, February 28, 202770 km
2027 Chilly Half Marathon
Burlington, ON · Road · 21km · starts 10:05 a.m. · from $95
- Sunday, June 13, 202773 km
XACT Kawartha Sun Run 2027
Kawartha Lakes, ON · Road · 21km / 10km / 5km · starts 7:30 a.m. · from $70
- Sunday, November 1, 202679 km
2026 Hamilton Marathon Road2Hope
Hamilton, ON · Road · 42km / 21km / 10km / 5km · starts 8 a.m. · from $66
- Saturday, January 30, 202785 km
Polar Bear Run - 2027
Fergus, ON · Trail · 21km / 10km / 5km · starts 10 a.m. · from $45
- Sunday, October 25, 202686 km
Niagara Falls 10k, Half & Marathon 2026Sold out
Niagara Falls, ON · Road · 42km / 21km / 10km · starts 7:30 a.m. · from $107
- Sunday, October 25, 202686 km
Niagara Falls International Marathon
Niagara Falls, ON · Road · Marathon / Half marathon / 10km / 5km
- Saturday, May 29, 202787 km
Sulphur Springs
Ancaster, ON · Trail · 100km / 50mi / 50km / 20km
- Saturday, October 17, 202692 km
Nottawasaga Fall Classic 2026
Wasaga Beach, ON · Road · 20km / 10km · starts 9 a.m. · from $51
New races in Markham, once a month
Newly listed races, and the registrations closing in the next three weeks. One email a month, one click to leave.
Half marathons in Markham — FAQ
- How many half marathons are there in Markham?
- 1 upcoming, and 16 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.