Ottawa, Canada

Ottawa Marathon

Sunday, May 24, 2026
Flat & Fast
Open Registration

Course Profile

Difficulty
Flat & Fast
Terrainroad
Elevation Gain65m
Elevation Loss65m

Fast, flat course through Canada's capital. One of Canada's fastest marathon courses with excellent surfaces and scenic government buildings.

Typical Weather

Temperature8°C - 18°C
Humiditymoderate

Late spring weather - generally pleasant. Can be variable with occasional warm days. Tulip Festival often coincides with race weekend.

Registration

Entry TypeOpen Registration
Typically HeldLast Sunday in May

Open registration with early bird pricing. Fast, flat BQ course. No qualification required. Part of Tamarack Ottawa Race Weekend.

Official Website

What Makes This Race Special

  • 1
    One of Canada's flattest marathon courses
  • 2
    Run past Parliament Hill and government landmarks
  • 3
    Often coincides with Canadian Tulip Festival
  • 4
    Boston Marathon qualifying race
  • 5
    Bilingual French-English atmosphere

When to start training

40 days until Ottawa Marathon

12-week plan
Sunday, March 1, 2026
Not enough time for this plan
16-week plan
Sunday, February 1, 2026
Not enough time for this plan
20-week plan
Sunday, January 4, 2026
Not enough time for this plan

Plan start dates calculated from Ottawa Marathon race day on Sunday, May 24, 2026.

Your 16-week training phases

From first base run to race day at Ottawa Marathon

PhaseDatesWeeksFocus
baseFebruary 1, 2026 March 7, 20265Build aerobic capacity with easy mileage
buildMarch 8, 2026 April 11, 20265Add tempo runs, hills, and mid-long runs
peakApril 12, 2026 May 9, 20264Race-specific workouts at goal pace
taperMay 10, 2026 May 23, 20262Reduce volume, sharpen, arrive fresh

Warm conditions

Typical race-day temperatures at Ottawa Marathon: 8°C 18°C.

Practise hydration strategy in training, consider dawn long runs, and plan for a slight pace adjustment.

The Ottawa Marathon is one of Canada's premier races, offering a fast, flat course through the nation's capital. The late May timing often coincides with the Canadian Tulip Festival, adding color to an already scenic course past Parliament Hill.

The Course

The course loops through Ottawa and across the river into Gatineau, Quebec, showcasing both English and French Canada. The terrain is remarkably flat, making it ideal for personal bests.

Capital Running

The course highlights Ottawa's landmarks:

  • Parliament Hill (Start/near Finish) - Canada's government center
  • Sussex Drive - Prime Minister's residence area
  • ByWard Market - Historic market district
  • Gatineau, Quebec - Cross-river into French Canada
  • Rideau Canal - UNESCO World Heritage waterway
  • Ottawa River Parkway - Scenic riverside running
  • Parliament Hill (Finish) - Grand governmental finale

Fast Canadian Running

Ottawa delivers speed:

  • Only 65m elevation gain - very flat
  • Cool late May temperatures
  • Excellent road surfaces
  • Boston qualifying race

Why Ottawa?

Ottawa offers a unique bilingual Canadian experience. Running past Parliament, crossing into Quebec, and finishing with views of the Peace Tower creates a distinctly Canadian marathon.

The Tulip Festival (when timing aligns) adds millions of tulips to the course - a gift from the Netherlands that Ottawa has cultivated since WWII.

Getting In

Ottawa uses open registration:

  • Registration opens in fall for the following May
  • No lottery or qualification required
  • Part of larger Race Weekend with multiple distances
  • Popular but doesn't typically sell out immediately

Race Day Tips

  • Late May can be warm - But usually pleasant
  • The Gatineau crossing is unique - You're briefly in Quebec
  • Parliament Hill finish is special - Historic architecture surrounds you
  • Check Tulip Festival timing - Adds beautiful color
  • Enjoy both official languages - "Bonne course!"

Train for Ottawa Marathon

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