The Ottawa 36.1 km Challenge

The Tartan Ottawa International Marathon and the Ottawa Half Marathon presented by Desjardins are now SOLD OUT! Thank you to everyone who has registered, we can’t wait to see you this May!

You can still register for all of the Saturday events at Tamarack Ottawa Race Weekend which include the Ottawa Kids Marathon presented by Maverick’s Donuts, Ottawa 2K presented by ASICS Runkeeper, Ottawa 5K presented by ASICS Runkeeper, and the Ottawa 10K presented by Otto’s Ottawa! Don’t miss out!

Are you a runner who loves to push the limits? The Ottawa 36.1 km Challenge is for you.

Ottawa 36.1 km Challenge participants will run three events during Tamarack Ottawa Race Weekend: the Ottawa 5K presented by ASICS Runkeeper, the Ottawa 10K presented by Otto’s Ottawa and the Ottawa Half-Marathon presented by Desjardins.

Three events. For an impressive 36.1 KM in total distance!

Challenge participants will a unique challenge t-shirt and medal, as well as a medal from each race!

This challenge is restricted to participants 16 years of age and older.

How much does it cost?

When you register for The Ottawa 36.1 km Challenge, you are registering for three different events. The cost of the challenge is those three events plus includes the extra swag.

Current event pricing:

$260.00 CAD + applicable fees + hst
In-person, virtual and Green Bib options available

Please note: strollers are not allowed on course

Expo location for 2024!

Aberdeen Pavilion

Lansdowne Park
1000 Exhibition Way
Ottawa, Ontario
K1S 5J3

Directions: Google map

Hours of Operation:

  • Friday, May 24, 8:00 am to 8:00 pm
  • Saturday, May 25, 8:00 am to 6:00 pm

I am already registered for one of these events. Can I still register?

Yes! Access your personalized dashboard through your confirmation email and you will see the option to join the challenge.

Applicable fees for transferring to a challenge:

  • the original registration fee will be applied as a credit towards your new registration
  • $5 transfer fee
  • Processing fees and taxes

Included with your registration:

  • A commemorative 2024 Finisher medal
  • A personalized race bib (register before May 1, 2024)
  • A commemorative, reusable drawstring bag
  • A FREE upgrade to the premium Runkeeper Goâ„¢ for personalized training, tailored motivation, and in-depth insights to help reach your goals
  • Nuun on course
  • Xact Nutrition on course at 9.5K in a mix of strawberry, apricot and orange flavours
  • Timing by Sportstats
  • A post-race beer from Kichesippi Beer co.
  • Post-race recovery food
  • Photography and videography available for purchase.
  • Virtual option available

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.
  • 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.

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