Ottawa Half Marathon presented by Desjardins

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Recent update: Registration for Tamarack Ottawa Race weekend has moved to Let’s Do This. Read more…

Every year, the Ottawa Half Marathon presented by Desjardins is the weekend’s most popular and fastest sell-out event!

This course is fast and relatively flat, making it great for personal bests and runners trying the distance for the first time! It’s also beautiful, taking runners past historic landmarks and through vibrant neighbourhoods of the nation’s capital. Best of all, the half marathon boasts an unbeatable atmosphere of enthusiastic spectators and volunteers!

Included with your registration:

  • A one-of-a-kind half marathon finisher medal that spins!
  • A personalized race bib (first name)
  • Xact Nutrition and Hydration on course
  • Professional race timing
  • Recovery food
  • A post-race beer from Kichesippi Beer co.
  • Two weeks FREE access to #1 rated personalized running coaching app, Runna!
  • An unparalleled half marathon experience!

Optional add-ons:

  • Souvenir Ottawa Half Marathon presented by Desjardins race shirt 
  • iTab Commemorative Ribbon Hanger
  • Photography and videography packages from Marathon Photos Live
  • Subscription to iRun Digital Magazine
  • An opportunity to give back to your community by fundraising for a charity!

EVENT DETAILS:

Date: Sunday, May 25, 2025
Time: 9:00 am ET
Location: Ottawa City Hall
110 Laurier Ave W, Ottawa, Ontario

Current event pricing (16+):
$142.31 CAD (includes applicable fees) + hst (effective January 2, 2025)
In-person, virtual and Green Bib options available.

SAVE WITH A RUN OTTAWA MEMBERSHIP:

You can now buy an RO membership seamlessly in-registration when signing up for a Run Ottawa event! As a member, you’ll enjoy exclusive benefits like 10% off the Ottawa Half Marathon presented by Desjardins and all other Run Ottawa events! Individual, dual, youth and family options now available! Find out more!

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.

COURSE FEATURES:

  • Kilometre markers along the entire route.
  • Hydration stations are set up approximately every 3K. Xact is served at the first tables of each station, and water at the following tables.
  • An Xact Nutrition station is located before the water stations at 11K.
  • 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.
  • Must be 16 years or older.
  • Strollers are not permitted on course.

ADAPTIVE ATHLETE INFORMATION:

Adaptive Athletes can opt to have up to three guides on their race course. Promo codes or direct registration links for guide/support runners will be emailed to Adaptive Athletes bi-weekly on Fridays. These emails, titled “Guide/Support Runner Information” will be sent from the Let’s Do This platform. Adaptive Athletes can share the provided promo code or direct link with their guide runner(s) to ensure complimentary and timed entry into Tamarack Ottawa Race Weekend.

Full information on the Adaptive Athlete program can be found by following this link. 

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

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