Spring races in Canada (2027)
55 races have a confirmed date between March 1 and May 31, 2027 — 9 in March, 7 in April, 39 in May — and another 104 ran last spring and have not announced their 2027 date yet, so 65% of the spring races on this page are still waiting on one. It fills in through the winter as organizers publish, and is rebuilt nightly. March is shared with the winter racing guide, which runs to the end of the month.
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 spring 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.
The spring marathons that already have a date
- 1Gopher Attack Marathon
April 25, 2027 · Regina, Saskatchewan · Marathon / Half marathon / 10km / 5km
- 22027 Beneva Mississauga Marathon
April 25, 2027 · Mississauga, Ontario · 42km / 21km / 10km / 5km
- 3Georgina Spring Fling 2027
May 2, 2027 · Georgina, Ontario · 42km / 21km / 10km / 5km
- 42027 BMO Vancouver Marathon
May 2, 2027 · Vancouver, British Columbia · 42km / 21km / 8km / 2km
- 5Festival BougeBouge et Marathon de l Île Perrot
May 2, 2027 · Notre-Dame-De-L Île-Perrot, Quebec · 42.2km / Half marathon / 10km / 5km
- 62027 Annual Stewart McKelvey Fredericton Marathon Race Weekend
May 9, 2027 · Fredericton, New Brunswick · 42km / 21km / 10km / 5km
- 7Medavie Blue Nose Marathon
May 21, 2027 · Halifax, Nova Scotia · 42km / 21km / 10km / 5km
- 8Course des pompiers de Laval 2027
May 30, 2027 · Laval, Quebec · 42km / 21km / 10km / 5km
Races that usually run in spring
104 races ran last spring and have not yet published a 2027 date. Grouped by the month they last ran, with the races offering the most distances first.
Usually March · 10
- Heritage to Hatzic 5 & 10 K Road Race — Mission, BCUsually runs in March · 2027 date not announced
- Toronto St. Patrick's Day Race — Toronto, ONUsually runs in March · 2027 date not announced
- Persistence Racing's 5th Anniversary Run — London, ONUsually runs in March · 2027 date not announced
- St. Patrick's Day Run — Prince Edward IslandUsually runs in March · 2027 date not announced
- The Shamrock Shuffle — St Thomas, ONUsually runs in March · 2027 date not announced
- DSpring Fling 5km — Hamilton, ONUsually runs in March · 2027 date not announced
- Swing Into Spring Fun Run — Prince Edward IslandUsually runs in March · 2027 date not announced
- Youth Running Series FULL SERIES Registration — Halifax, NSUsually runs in March · 2027 date not announced
- Indoor Track Series - Meet #2 — St. John's, NLUsually runs in March · 2027 date not announced
- Yukon Hardwater Racing — Haines Junction, YTUsually runs in March · 2027 date not announced
Usually April · 29
- The Springbank Sprint — London, ONUsually runs in April · 2027 date not announced
- Around the Bay Road Race — Hamilton, ONUsually runs in April · 2027 date not announced
- endurrace — Waterloo, ONUsually runs in April · 2027 date not announced
- Merrickville Heritage Classic — Merrickville, ONUsually runs in April · 2027 date not announced
- St Lawrence Marathon — Cornwall, ONUsually runs in April · 2027 date not announced
- The Foxtail Rail Trail Race (Paul Turkstra Memorial) — Dundas, ONUsually runs in April · 2027 date not announced
- Caledon Crusher — Shelburne, ONUsually runs in April · 2027 date not announced
- Cobble Beach Lighthouse Fun Run — Kemble, ONUsually runs in April · 2027 date not announced
- Good Friday Race — Burlington, ONUsually runs in April · 2027 date not announced
- Pick Your Poison Trail Run — Barrie, ONUsually runs in April · 2027 date not announced
- Trekking for Home — London, ONUsually runs in April · 2027 date not announced
- Bumrun Toronto — Toronto, ONUsually runs in April · 2027 date not announced
- Bunny Hop — Prince Edward IslandUsually runs in April · 2027 date not announced
- Canine Classic — Cole Harbour, NSUsually runs in April · 2027 date not announced
- FitFarm Little Loop Ultra — Strathroy, ONUsually runs in April · 2027 date not announced
And 14 more that usually run in April.
Usually May · 65
- Sasamat Ice Cracker Open Water Swim and SwimRun Challenge — Belcarra, BCUsually runs in May · 2027 date not announced
- Sulphur Springs Trail Race — Hamilton, ONUsually runs in May · 2027 date not announced
- Pure Grit Trail Race — Hepworth, ONUsually runs in May · 2027 date not announced
- Seaton Scramble Trail Race — Pickering, ONUsually runs in May · 2027 date not announced
- Baden Running Races — Baden, ONUsually runs in May · 2027 date not announced
- Red Deer Marathon, Half Marathon & 10K Road Race — Red Deer, ABUsually runs in May · 2027 date not announced
- St. Clair River Run — Port Lambton, ONUsually runs in May · 2027 date not announced
- SudburyROCKS — Greater Sudbury, ONUsually runs in May · 2027 date not announced
- Tails on Trails — Waterloo, ONUsually runs in May · 2027 date not announced
- Toronto Marathon — Toronto, ONUsually runs in May · 2027 date not announced
- Turas Mór — Creemore, ONUsually runs in May · 2027 date not announced
- Bear Mountain Trail Running Race — Mission, BCUsually runs in May · 2027 date not announced
- Fulton Campbell Race Series — Prince Edward IslandUsually runs in May · 2027 date not announced
- K9 Run — Burnaby, BCUsually runs in May · 2027 date not announced
- Run From Away Marathon - Half Marathon - 5k — Gander, NLUsually runs in May · 2027 date not announced
And 50 more that usually run in May.
Spring by the numbers
Across all 159 races on the spring calendar, confirmed or usual, 69% include a 5K, 52% a 10K and 23% a half marathon or longer; 15 include a full marathon. Ontario holds 48% of them.
Read these as the shape of the season rather than a complete count. The Vancouver Sun Run, Ottawa Race Weekend and the Calgary Marathon are not on this calendar yet. Manitoba (3% of the whole calendar, 0% here) is under-counted: races there mostly reappear here only once a new date is published, so expect it to fill in as dates arrive.
What spring weather actually does
Ten-year weather normals for the week and town of 109 of the 159 spring races; the rest are in places without a weather record. Across every race town with a weather record, the typical daily high climbs from 0°C in the first week of March to 21°C by the end of May — a 21° swing inside one season, which is why a March race and a May race call for different kit.
| Month | Typical high | Typical low | Days wet | Races measured |
|---|---|---|---|---|
| March | 6°C | -3°C | 43% | 15 |
| April | 12°C | 2°C | 41% | 25 |
| May | 16°C | 7°C | 34% | 69 |
In 12 of the 15 March race-weeks measured, the typical overnight low is below freezing — so an early start line can be far colder than the afternoon high suggests.
Daily records 2016–2025 via Open-Meteo. What past years did, not a forecast.
The busiest spring weekends so far
Counting only races with a confirmed date — the usual-month list has no dates to count.
- Weekend of May 29, 202712 races
- Weekend of May 1, 202710 races
- Weekend of May 8, 20276 races
- Weekend of March 13, 20274 races
Planning a spring race from here
A May marathon wants 16 to 18 weeks of training, which puts the start of the block in January or early February. Registration is already open for 47 of the 52 confirmed spring races that publish an opening date, and 5 open later.
Build the season around it with the season planner, see when race season peaks, or check when to register.