Canada · Ontario
Ontario Race Calendar
Browse 5Ks, marathons, triathlons, cycling and more across Ontario — explore top cities, sports and upcoming dates.
- Events
- 26
- Cities with events
- 16
- Next race
- Jul 25
Last updated:
About
Racing in Ontario
Ontario lists 26 active races, with the busiest race scenes in Toronto, Elmira and Etobicoke. Running leads the Ontario calendar, alongside other running, cycling, swimming and multisport events across the province. Whether you're chasing a first 5K or a marathon PR, every listing below includes dates, distances and a direct link to register.
Every distance
From 5Ks and 10Ks to half marathons and longer, Ontario's calendar spans road, trail, cycling, swimming and triathlon events.
When to race
Spring and fall are the busiest seasons, but you will find events on the calendar throughout the year.
Easy to register
Every event shows its distances and dates with a direct link to the official registration page.
Coming soon
Upcoming Races in Ontario
Dino Run Richmond Hill 1K
Dino Run Richmond Hill 2K
Toronto Hotdog Mile
GLO Toronto Half Marathon/10K/5K
BK5K Waterloo, Canada
artinmotion
Test Race
Most active
Top cities for races
Good to know
Frequently asked questions
Everything you need to know about finding and registering for races in Ontario.
Browse all events →How many races are there in Ontario?
Which Ontario cities host the most races?
When is race season in Ontario?
Are there beginner-friendly races in Ontario?
How do I register for a race?
Ready to find your next race?
Browse every event in Ontario with dates, distances and registration links.
Browse all Ontario races