Ottawa Half Marathon presented by Desjardins

Register

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 reusable drawstring bag
  • 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.
  • 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: 8:30 am ET
Location: Ottawa City Hall
110 Laurier Ave W, Ottawa, Ontario

Current event pricing (16+):
$115.50 CAD + applicable fees + hst
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. Nuun 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:

Coming soon.

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

Register