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Races in April 2027 in Ontario

12 races with a confirmed date in April 2027 across Ontario — the biggest group is 5K races (9). The busiest day is Sunday, April 25, 2027 with 4 races. Every listing links to the organizer's official registration page.

May →April across Canada

The big ones in April

Multi-distance race weekends — the ones worth planning around.

What April is made of

5K races · 910K races · 6Half marathons · 2Marathons · 1Ultramarathons · 1

Where they are

Hamilton · 2Toronto · 2Ancaster · 1Kingston · 1Mississauga · 1Mono · 1Strathroy-Caradoc · 1Windsor · 1

Every race in April

When

12 races listed

New races in Ontario, 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.

Other months

November 2026December 2026January 2027February 2027March 2027

Races in April 2027 — FAQ

How many races are there in April 2027 in Ontario?
12 with a confirmed date, and the biggest group is 5K races with 9. The busiest single day is Sunday, April 25, 2027, with 4 races. Recompiled nightly from the organizers' own calendars, so the number moves as races are announced.
When should I register for a April race?
Most Canadian races take entries until race week — what expires first is the price tier, not the spot. Check the fee window on the race's page before you wait.
Do I sign up here?
No. Every listing links straight to the organizer's own registration page. RaceFinder never takes signups or a cut.

Planning further out? Build a season, see when race season peaks in Canada, or check which entry fees go up next.