How many half marathons are there in Ancaster?

1 upcoming, and 9 more within 100km if you are willing to drive. The next one is Sulphur Springs Trail Race on Saturday, May 29, 2027. Rebuilt from the race calendar daily.

When is the next half marathon in Ancaster?

Sulphur Springs Trail Race, Saturday, May 29, 2027. 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 Ancaster

1 upcoming in Ancaster, and 9 more within 100km. Every one links to the organizer's official registration page.

10K races in Ancaster Half marathons across Ontario

Saturday, May 29, 2027
Sulphur Springs Trail Race
ON · Trail · 100mi / 100km / 50mi / 20km

More half marathons near Ancaster

Everything within 100km, sorted by how far you would have to drive.

Sunday, September 26, 2027
Albion Ascent Trail Race
Hamilton, ON · Trail · 21km / 10km / 5km
9 km
Sunday, February 28, 2027
2027 Chilly Half Marathon
Burlington, ON · Road · 21km · starts 10:05 a.m. · from $95
18 km
Sunday, October 3, 2027
Oakville 21.1
Oakville, ON · Road · 21km / 10km / 5km · starts 7:30 a.m. · from $64
35 km
Sunday, April 25, 2027
2027 Beneva Mississauga Marathon
Mississauga, ON · Road · 42km / 21km / 10km / 5km · starts 7:30 a.m.
48 km
Saturday, January 30, 2027
Polar Bear Run - 2027
Fergus, ON · Trail · 21km / 10km / 5km · starts 10 a.m. · from $56
62 km
Friday, November 27, 2026
Nemo Memorial Run - Run for the Heroes.
Toronto, ON · Road · 42km / 21km / 10km / 5km · starts 12 p.m. · from $29
67 km
Thursday, December 31, 2026
Run to End Homelessness
Toronto, ON · Road · 42km / 21km / 10km / 5km · starts 12 p.m. · from $29
67 km
Thursday, December 31, 2026
Run to End Child Hunger
Toronto, ON · Road · 42km / 21km / 10km / 5km · starts 12 p.m. · from $40
67 km
Sunday, October 17, 2027
2027 TCS Toronto Waterfront Marathon
Toronto, ON · Walk · 42km / 21km / 5km / 1km · starts 8 a.m. · from $71
67 km

New races in Ancaster, once a month

Newly listed races, and the registrations closing in the next three weeks. One email a month. Every subscriber is in the monthly $25 gift-card draw, held on the 1st. One click to leave.

Half marathons in Ancaster — FAQ

How many half marathons are there in Ancaster?: 1 upcoming, and 9 more within 100km if you are willing to drive. The next one is Sulphur Springs Trail Race on Saturday, May 29, 2027. Rebuilt from the race calendar daily.
When is the next half marathon in Ancaster?: Sulphur Springs Trail Race, Saturday, May 29, 2027. 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 Ancaster and half marathons across Canada.