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Canada · ON

Running Races in Ontario, Canada

Ontario, Canada currently has 91 upcoming races with a confirmed date listed in RaceRove. Hamilton, Toronto, Ottawa and London have the largest concentration of events.

By distance, that includes 60 5Ks, 37 10Ks, 13 half marathons and 6 marathons. Many events offer more than one distance, so a race can appear in more than one of those counts.

November (20), June (15) and December (14) are the busiest months on the calendar right now. Another 79 annual races are waiting for next year's date to be announced.

Search Ontario races
Upcoming, date confirmed
91
Active listings
170
Cities with races
78

Browse Ontario races by distance

Upcoming races in Ontario, Canada

The next 60 of 91 with a confirmed date, soonest first.

Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.

See all 91 in the interactive search

Largest races in Ontario, Canada

By estimated field size across all distances at the event.

  • Holly Jolly Fun Run
    Toronto, ON
    Holly Jolly Fun Run ~2,500 runners
  • The County Marathon
    Prince Edward, ON Usually held in October · next date not announced
    Half Marathon2-5 Person Marathon Relay Team5K RunFull Marathon +1 more ~1,600 runners
  • Fenelon Falls Turkey Trot Trail Race & Family Fun Run
    Kawartha Lakes, ON Usually held in October · next date not announced
    1k Kids Run/Walk (12 and Under)1k Run walk (youth 13-19)1k Run walk (Adult 20-59)1k Run walk (Senior 60+) +6 more ~550 runners
  • Don Doan Dash
    Brampton, ON
    5K Run10K Run5K Walker ~400 runners
  • Phoenix Trail Races
    London, ON Usually held in October · next date not announced
    25K Walk/Hike (In-Person)25K Trail Run (In-Person)50K Trail Run (In-Person)Wait List ~300 runners
  • The Lost Valley Trail Race
    Dundas, ON Usually held in October · next date not announced
    10k Waitlist25k Waitlist10 km (10:30am)25 km (9:30am) ~180 runners
  • Ecotay 6K and 10K
    Perth, ON Usually held in October · next date not announced
    6K10K ~150 runners
  • Wise Raven Trail Race
    Waterloo, ON Usually held in October · next date not announced
    5km 2 Loops10km 4 loops25km 10 Loops50km 20 Loops +2 more ~115 runners

When races happen in Ontario, Canada

January
6 upcoming races
February
2 upcoming races
March
2 upcoming races
April
4 upcoming races
May
8 upcoming races
June
15 upcoming races
July
6 upcoming races
August
5 upcoming races
September
2 upcoming races
October
7 upcoming races
November
20 upcoming races
December
14 upcoming races

Ontario cities with the most races

Hamilton
12 upcoming races
Toronto
10 upcoming races
Ottawa
6 upcoming races
London
5 upcoming races
Burlington
4 upcoming races
Kitchener
3 upcoming races
Oakville
3 upcoming races
Whitby
3 upcoming races

Running in Ontario cities

Browse Ontario races by month

Annual events awaiting their next date

These races are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.

  • The County Marathon
    Prince Edward, ON Usually held in October · next date not announced
    Half Marathon2-5 Person Marathon Relay Team5K RunFull Marathon +1 more ~1,600 runners
  • Fenelon Falls Turkey Trot Trail Race & Family Fun Run
    Kawartha Lakes, ON Usually held in October · next date not announced
    1k Kids Run/Walk (12 and Under)1k Run walk (youth 13-19)1k Run walk (Adult 20-59)1k Run walk (Senior 60+) +6 more ~550 runners
  • Phoenix Trail Races
    London, ON Usually held in October · next date not announced
    25K Walk/Hike (In-Person)25K Trail Run (In-Person)50K Trail Run (In-Person)Wait List ~300 runners
  • The Lost Valley Trail Race
    Dundas, ON Usually held in October · next date not announced
    10k Waitlist25k Waitlist10 km (10:30am)25 km (9:30am) ~180 runners
  • Ecotay 6K and 10K
    Perth, ON Usually held in October · next date not announced
    6K10K ~150 runners
  • Wise Raven Trail Race
    Waterloo, ON Usually held in October · next date not announced
    5km 2 Loops10km 4 loops25km 10 Loops50km 20 Loops +2 more ~115 runners
  • Sticks n' Stones Trail Race
    Hamilton, ON Usually held in October · next date not announced
    5 km (10:00am)10 km (10:00am)26.5 km (9:00am)53 km (9:00am) +1 more ~50 runners
  • 5 Peaks Trail Running Series: Heart Lake
    Brampton, ON Usually held in October · next date not announced
    Grit CourseSport CourseEnduro CourseEnduro Hike +6 more
  • 5k/10k Run/Walk for Justice
    Newmarket, ON Usually held in October · next date not announced
    5k In-Person TORONTO10K in-person TORONTO
  • 9runrun - Kingston
    Kingston, ON Usually held in October · next date not announced
    5K Adult5K YouthGREEN BIB: 5K AdultGREEN BIB: 5K Youth +5 more
  • 9runrun - Ottawa
    Ottawa, ON Usually held in October · next date not announced
    5K Adult5K Youth10K Adult10K Youth +6 more
  • Ajax Waterfront Race
    Ajax, ON Usually held in October · next date not announced
    Medallion 1k KidsBenson Kearley 5kVanDusen 15k20k Challenge
  • Bimbo Global Race
    Toronto, ON Usually held in October · next date not announced
    10K Run (8:00 a.m.)5K Run (9:30 a.m.)3K Run/Walk (10:15 a.m.)
  • Bridget's Run
    Barrie, ON Usually held in October · next date not announced
    5KM1KMKids 12 and under - 1K/5K Bunny Hop
  • Brockville Butterfly Run
    Brockville, ON Usually held in October · next date not announced
    Children Under 12 (1km)Children Under 12 (5km)Adult (1km)Adult (5km)
  • Caps Off Run Club Fall Colours Run To Port
    St. Thomas, ON Usually held in October · next date not announced
    The Red Barn (30k)Lyle Road (27.5k)Fingal Line (20k)Sunset Cafe (17.5k) +3 more
  • Collingwood 10k
    Collingwood, ON Usually held in October · next date not announced
    10kYouth (16 & U) | 10kGORDON'S KIDS FUN RUN5km +1 more
  • Collingwood Off Road Running (CORR)
    Grey County, ON Usually held in October · next date not announced
    Season Membership - Adult 18+Season Membership - Youth (age 5-17)CORR Fall Pop-Up - Oct 1st
  • Cooper Robertson Foundation – Run With Coops!
    Grimsby, ON Usually held in October · next date not announced
    Kids Community Walk/RunAdult Community Walk/RunCorporate 1K ChallengeRun For Coops T-shirt (Non-runner)
  • Cross the Line
    Toronto, ON Usually held in October · next date not announced
    3KM Walk3KM Family Walk5KM Run
  • Crystal Beach 5k
    Fort Erie, ON Usually held in October · next date not announced
    5km Run (Adult)5km Run/Walk (Student)5km Walk (Adult)Fun Run
  • Fall 5 KM Classic
    Cambridge, ON Usually held in October · next date not announced
    5 KMFuture Runner (Stroller Occupant)200m Fun Run
  • Grey Bruce Animal Shelter Dog Jog
    Owen Sound, ON Usually held in October · next date not announced
    Dog Jog 2026: Mile Drive TrailDog Jog 2026: Bruce Trail
  • Grimsby On The Lake Turkey Trot
    Grimsby, ON Usually held in October · next date not announced
    Kid's 1km5k Turkey Trot
  • Halloween 5 and 10K
    Hamilton, ON Usually held in October · next date not announced
    In-person Halloween 5KMIn-person Halloween 10KMIn-person Spooky 1KM
  • Halloween Haunting
    London, ON Usually held in October · next date not announced
    Halloween Haunting 10kHalloween Haunting 5kHalloween Haunting 2.3kHalloween Haunting Kiddy trot
  • Harvest Hustle: 5K Run, Wheel & Walkathon
    Chatham-Kent, ON Usually held in October · next date not announced
    Kids DashWalk & Wheel5K Run
  • Haunted Hustle
    Oakville, ON Usually held in October · next date not announced
    5K Run - Adult5K Run - Student / Child10K Run - Adult10K Run - Student / Child +3 more
  • IM2 inventory throwaway 2026-09-02 ADMIN CAD
    London, ON Usually held in October · next date not announced
    Bundle-ABSE-PAIDSE-ATTACH-BACKFILL
  • Jordan's Run the Runway 5K Series: Sarnia-Lambton
    Sarnia, ON Usually held in October · next date not announced
    Runway 5K Run/Walk/RollHIGH SCHOOL STUDENT 5K Run/Walk/RollKiddie Trot 1K (not timed)
  • Kilometers for Kids
    Cobourg, ON Usually held in October · next date not announced
    1 km Fun Run (or walk or ride!)5km Walk or Run
  • Lighthouse to Lighthouse Half Marathon & 5K
    Kincardine, ON Usually held in October · next date not announced
    5KHalf Marathon
  • London Bridge Kids Helping Kids Walk-a-Thon
    London, ON Usually held in September · next date not announced
    London Bridge Kids Helping Kids Walk-a-thon
  • Long Sault Trail Race & Ultra
    Bowmanville, ON Usually held in October · next date not announced
    Deer 6 Hour Race8AM/Morning Rabbit 7K Run/Hike2PM/Afternoon 7K Rabbit RunRacoon 14K Run +2 more
  • Manotick Backyard Ultra
    Ottawa, ON Usually held in September · next date not announced
    1k5kUltra
  • Miles for Mental Health
    South Stormont, ON Usually held in October · next date not announced
    5km Run10km Run
  • New Tecumseth Memorial Run/Walk
    New Tecumseth, ON Usually held in October · next date not announced
    5k Run/WalkKids fun run
  • Niagara Falls 10k, Half & Marathon
    Niagara Falls, ON Usually held in October · next date not announced
    Niagara Falls Marathon - October 25Half-Marathon - October 2510K - October 25
  • Northumberland Turkey Trot
    Cobourg, ON Usually held in October · next date not announced
    The Gobbler 5K RunThe Gobbler 2.5K Run/WalkWing Ding 1K Kids Fun Run
  • Orange Crush 5km Run
    Newmarket, ON Usually held in October · next date not announced
    1km Kids Run5km Run

Races in nearby provinces and territories

Guides from the RaceRove blog

Running Races in Ontario, Canada: common questions

How many races are there in Ontario, Canada?
RaceRove currently lists 91 upcoming races in Ontario, Canada with a confirmed date, plus 79 annual events whose next date hasn't been announced yet.
Which Ontario cities have the most races?
By upcoming events listed in RaceRove: Hamilton (12), Toronto (10), Ottawa (6), London (5) and Burlington (4).
When is race season in Ontario, Canada?
Of the upcoming races listed, the busiest months are November (20), June (15) and December (14).
What is the biggest race in Ontario, Canada?
By estimated field size, the largest race listed in Ontario, Canada is the Holly Jolly Fun Run, with about 2,500 runners across all of its distances.

Search every race in Ontario, Canada

Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.

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