Tartan Ottawa International Marathon

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The Tartan Ottawa International Marathon is Canada’s fastest marathon. This race attracts thousands of participants, including a world-class contingent of pro-athletes every year. The Tartan Ottawa International Marathon is a World Athletics Elite Label Race and one of Canada’s largest Boston Qualifiers.

The Tartan Ottawa International Marathon is for ages 18 years and up. Strollers are not allowed on course. The Ottawa 2K presented by ASICS Runkeeper is available for those who would like to run with a stroller.

Featuring a new and exciting course for the 50th anniversary!

Date: Sunday, May 25, 2025

Start Time: 7:00 am ET

Location: Ottawa City Hall
110 Laurier Ave W, Ottawa, Ontario

Current event pricing:

$140.00 CAD + applicable fees + hst
In-person, virtual and Green Bib options available

Expo location for 2025

TBA

Tartan Ottawa International Marathon bus tour schedule:

TBA

Included with your registration:

    • A commemorative Finisher medal 
    • A commemorative, reusable drawstring bag
    • A FREE upgrade to the premium Runkeeper Go™ for personalized training, tailored motivation, and in-depth insights to help reach your goals.
    • Nuun and Xact Nutrition on course
    • Timing by Sportstats
    • A post-race beer from Kichesippi Beer co.
    • Post-race recovery food
    • Virtual option available

Additional features:

  • Commemorative t-shirts by Surge Activewear are available for purchase during registration.
  • Photography and videography available for purchase.

Green Bib:

Run Ottawa is offering a Green Bib option at registration for those wishing to reduce their environmental footprint. In lieu of a medal or any mailed amenities, you can choose to divert part of your registration fee to the Green Bib fund which supports the Desjardins Charity Challenge.

Elite registration:

Please see athletic standards and 2025 prize purse prior to applying. 

Course Features

  • Kilometre markers along the entire route.
  • Water/Nuun stations are set up approximately every 3K. Nuun is served at the first tables of each station, and water at the following tables.
  • Xact Nutrition stations located at 11K, 22K and 32K in a mix of strawberry, apricot and orange flavours.
  • Cooling and misting stations available on-course.
  • Portable toilets at every water station.
  • Cheering and entertainment stations.
  • Full medical services on the route and at the finish line.

For answers to your Frequently Asked Questions (FAQ) please visit the Registration Information page.

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