Summer races in Canada (2027)
216 races have a confirmed date between June 1 and August 31, 2027, and 570 more ran last summer and have not re-announced — so 73% of the summer races on this page have no 2027 date yet. Summer dates land through the winter and spring, and this page fills in nightly as they do.
Two kinds of listing on this page. Every date shown is one an organizer has published. The second list is different: those races ran last summer and have not yet said when they run in 2027, so they are filed under the month they usually run, with no date attached. A guessed date shown as a real one would be worse than no date at all.
Summer is a multisport season
Across the 786 races on the summer calendar, 90 are triathlons or duathlons, 26 are swims or swimruns and 38 are cycling events, against 22 that include a full marathon. 46% have a 5K and 32% a 10K, and 62 include an ultra distance.
Where summer racing happens
Ontario holds 33% of the summer races on this page, followed by British Columbia with 17%.
Already on the summer calendar
The confirmed summer races offering the most distances so far, one per event name.
- 1Trail La Clinique Du Coureur
June 5, 2027 · Lac-Beauport, Quebec · 50km / 42km / 40km / 30km
- 2Notos Ultra Trail
June 12, 2027 · Victoriaville, Quebec · 65km / 45km / 30km / 20km
- 3Community Strong Race Weekend
June 20, 2027 · Sault Ste. Marie, Ontario · 60km / 42km / 21km / 10km
- 4Québec Mega Trail
July 4, 2027 · Beaupré, Quebec · 135km / 80km / 75km / 65km
- 52027 Peach Classic Triathlon
July 11, 2027 · Penticton, British Columbia · 51km / 41km / 25km / 17km
- 6Ultra Trail du Mont Gosford
July 17, 2027 · Woburn, Quebec · 80km / 50km / 30km / 17km
- 72027 Ryder Hesjedal's Tour de Victoria
August 14, 2027 · Victoria, British Columbia · 155km / 133km / 95km / 77km
- 8Défi d'eau libre
August 15, 2027 · Sainte-Catherine-de-la-Jacques-Cartier, Quebec · 10km / 5km / 2km / 1km
- 9Mudskipper SwimRun - Milton and the Milton Open Water Swim and Trail Run
August 15, 2027 · Milton, Ontario · 20km / 15km / 10km / 7km
- 10Ultra-Trail des Chic-Chocs
August 20, 2027 · Sainte-Anne-des-Monts, Quebec · 170km / 88km / 45km / 39km
What usually runs, month by month
570 races ran last summer and have not yet published a 2027 date. Grouped by the month they last ran, with the races offering the most distances first.
Usually June · 233
- Courses Thematiques Tour du Lac Brome Sun Life — Lac-Brome, QCUsually runs in June · 2027 date not announced
- 402 Squadron Grizzly Ride — Oakbank, MBUsually runs in June · 2027 date not announced
- Course du Maire de Donnacona — Donnacona, QCUsually runs in June · 2027 date not announced
- Greentrail Vancouver — North Vancouver, BCUsually runs in June · 2027 date not announced
- Manitoba Marathon — Winnipeg, MBUsually runs in June · 2027 date not announced
- Niagara Ultra — Niagara-on-the-Lake, ONUsually runs in June · 2027 date not announced
- BougeBouge Gatineau - Trail urbain — Gatineau, QCUsually runs in June · 2027 date not announced
- Défi Dansereau 10ème anniversaire (DD26) — Pont-Rouge, QCUsually runs in June · 2027 date not announced
- ELEVATE, Kelso Conservation — Milton, ONUsually runs in June · 2027 date not announced
- La Grande Viree des Sentiers St-Bruno — St-Bruno-de-Montarville, QCUsually runs in June · 2027 date not announced
- Rainbow Trail Run — Simcoe County, ONUsually runs in June · 2027 date not announced
- WELLAND Open Water Swim and SwimRun Challenge — Welland, ONUsually runs in June · 2027 date not announced
- Whistler Half Marathon — Whistler, BCUsually runs in June · 2027 date not announced
- Buttertart Trot — Midland, ONUsually runs in June · 2027 date not announced
- Canyon to Coast Marathon, 21k, 11k & 4k — Chilliwack, BCUsually runs in June · 2027 date not announced
And 218 more that usually run in June.
Usually July · 136
- Jerome Classic — Burnaby, BCUsually runs in July · 2027 date not announced
- Clearwater Lake Half Marathon — The Pas, MBUsually runs in July · 2027 date not announced
- St. Donat Mudskipper Quebec SwimRun Championships and Open Water Swim — Saint-Donat-de-Montcalm, QCUsually runs in July · 2027 date not announced
- The First Blaze Trail Race — Milton, ONUsually runs in July · 2027 date not announced
- Trail Hub Bike Fest — Uxbridge, ONUsually runs in July · 2027 date not announced
- 55th Annual Nova Scotia Marathon — Barrington Passage, NSUsually runs in July · 2027 date not announced
- Apex Trail Run and Bike — Sudbury, ONUsually runs in July · 2027 date not announced
- Gran Fondo des îles Lamèque et Miscou — Lamèque, NBUsually runs in July · 2027 date not announced
- The Coldwater Classic — Thompson-Nicola, BCUsually runs in July · 2027 date not announced
- Tour de L'Alberta - Biking Like a Viking — Sherwood Park, ABUsually runs in July · 2027 date not announced
- Triathlon de Pohénégamook — Pohenegamook, QCUsually runs in July · 2027 date not announced
- XTERRA Quebec — Québec, QCUsually runs in July · 2027 date not announced
- YOU MOVE SPUD RUN — Bloomfield, PEUsually runs in July · 2027 date not announced
- 5k and 15k Farm Run — Ottawa, ONUsually runs in July · 2027 date not announced
- Biidaasige Dino Run — Toronto, ONUsually runs in July · 2027 date not announced
And 121 more that usually run in July.
Usually August · 201
- 24 Hour To Empower Running Challenge — Barrie, ONUsually runs in August · 2027 date not announced
- XTERRA Sleeping Giant — Thunder Bay, ONUsually runs in August · 2027 date not announced
- Gran Fondo Lake Huron — Southampton, ONUsually runs in August · 2027 date not announced
- Stokely Creek Trail Jam — Goulais River, ONUsually runs in August · 2027 date not announced
- Chad’s Day For Change Urban Trail Race — Edmonton, ABUsually runs in August · 2027 date not announced
- Argus Apple Triathlon — Kelowna, BCUsually runs in August · 2027 date not announced
- Défi Coureur des Bois — Strathroy-Caradoc, ONUsually runs in August · 2027 date not announced
- Kawartha Lakes Classic Cycling Tour — Kawartha Lakes, ONUsually runs in August · 2027 date not announced
- Middle Path Trail Race — Peterborough County, ONUsually runs in August · 2027 date not announced
- Raid Bras-du-Nord — St-Raymond, QCUsually runs in August · 2027 date not announced
- Roots and Rocks Trail Run — Sudbury, ONUsually runs in August · 2027 date not announced
- Servus Edmonton Marathon — Edmonton, ABUsually runs in August · 2027 date not announced
- Subaru TriLobster Multi-Sport Festival — Summerside, PEUsually runs in August · 2027 date not announced
- Témis Ultra-Trail du Témiscamingue — Témiscamingue Regional County Municipality, QCUsually runs in August · 2027 date not announced
- Trail du Massif du Sud — Saint-Philemon, QCUsually runs in August · 2027 date not announced
And 186 more that usually run in August.
The heat is the variable
Ten-year weather normals for the week and town of 767 of the 786 summer races; the rest are in places without a weather record. 54% of July race-weeks have a typical high of 25°C or more, and 39% of August's.
| Month | Typical high | Typical low | Days wet | Races measured |
|---|---|---|---|---|
| June | 22°C | 12°C | 39% | 325 |
| July | 25°C | 16°C | 37% | 208 |
| August | 24°C | 15°C | 34% | 234 |
The spread inside one season is the point: race week in Kelowna in July typically peaks at 32°C, while St. John's in June sits at 13°C. Kit that is right for one is wrong for the other.
Daily records 2016–2025 via Open-Meteo. What past years did, not a forecast.
The busiest summer weekends so far
Counting only races with a confirmed date — the usual-month list has no dates to count.
- Weekend of June 19, 202725 races
- Weekend of June 5, 202723 races
- Weekend of June 12, 202722 races
- Weekend of July 10, 202717 races
Racing through summer
10 summer marathons have a confirmed date so far, and for most runners summer is the training block rather than the target — the base that the fall races are built on. Race early in the day when you can, and plan fluids around the day's high rather than the start-line temperature.
Browse the full calendar, plan with the season planner, or see what to run trails in.