How many marathons in Canada are there?

42Cal currently lists 6 upcoming marathons in Canada, from October 2026 through May 2027. The list updates automatically as new races are added to the calendar.

When do these races take place?

The next race is in October 2026 and the calendar runs through May 2027. Races are listed by date so the soonest events appear first.

How is this list chosen?

Every entry is an upcoming, non-cancelled race that matches the "Marathons in Canada" criteria, pulled live from the 42Cal database and sorted by date. Past races drop off automatically.

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Race Collection

Marathons in Canada

There are 6 upcoming marathons in Canada on the 42Cal calendar, from October 2026 through May 2027. Course elevation gain starts as low as 377 ft, with a median of 453 ft across the field.

Upcoming races

October 2026 – May 2027

Date range

Countries

Ottawa, Ontario, Canada

Marathon

Also: Half Marathon, 10K, 5K

See full guide

Compare These Races

Race	Date	Location	Distance	Elevation	Status
Marathon Beneva de Montréal	October 2026	Montréal, Canada	Marathon	172 m	Registration Closed
TCS Toronto Waterfront Marathon	October 2026	Toronto, Canada	Marathon	138 m	Registration Closed
Niagara Falls Marathon	October 2026	Niagara Falls, Canada	Marathon	120 m	Opening Soon
BMO Vancouver Marathon	May 2027	Vancouver, Canada	Marathon	160 m	Opening Soon
Calgary Marathon	May 2027	Calgary, Canada	Marathon	115 m	Opening Soon
Ottawa Marathon	May 2027	Ottawa, Canada	Marathon	150 m	Opening Soon