What races are included in the Tamarack Ottawa Race Weekend 2026?

• →Tamarack Homes Ottawa International Marathon (Sunday, May 24, 7:00 AM ET)
• →Ottawa Half Marathon presented by Desjardins (Sunday, May 24, 9:00 AM ET)
• →Ottawa 10K presented by Otto's Ottawa (Saturday, May 23, 6:00 PM ET)
• →Ottawa 5K (Saturday, May 23, 4:00 PM ET)

What are the registration fees for the different distances?

• →Ottawa Half Marathon: $174.38 CAD (incl. fees) + HST
• →Ottawa 10K: $112.50 CAD (incl. fees) + HST
• →Ottawa 5K: $61.88 CAD (incl. fees) + HST

What are the age requirements for participation?

• →Marathon: 18+ years old
• →Half Marathon: 16+ years old
• →10K: 14+ years old
• →5K: 5+ years old

What is the schedule for the Ottawa 10K?

• →Hand cyclists: 5:40 PM ET
• →Elite women: 5:45 PM ET
• →Elite men and other waves: 6:30 PM ET

What is included with race registration?

• →Personalized race bib (first name)
• →Finisher medal (spinning design for Marathon and Half Marathon)
• →Professional race timing
• →On-course Xact Nutrition and Hydration
• →Recovery food
• →2 weeks of free access to the Runna coaching app

What amenities and features are available on the course?

• →Kilometre markers along the entire route
• →Water and Xact hydration stations (lemon Xact + water) every ~3K
• →Xact Nutrition stations at specific intervals (8.5K, 22K, and 32.5K for the Marathon; 15.25K for the Half Marathon)
• →Cooling and misting stations
• →Portable toilets at every water station
• →Cheering and entertainment stations
• →Full medical services on the route and at the finish line

Are there any specific race rules or restrictions?

• →Strollers are NOT permitted in any of the races.
• →The Marathon has a 7-hour race limit and a requirement to reach the 27km marker (Pretoria Bridge area) by 11:30 AM.

What awards are available for the Ottawa 10K?

• →The event serves as the Canadian 10km Age Group (Masters) Championships.
• →Top 3 male and female Canadian residents per 5-year age group (starting 30–34) are awarded Gold, Silver, and Bronze.
• →Participants must be 2026 Athletics Canada members (citizen or permanent resident) to qualify.
• →Results are determined by chip time.

Are there any optional add-ons available?

• →Souvenir race shirt
• →iTab Commemorative Ribbon Hanger
• →Photography and videography packages via Marathon Photos ↗
• →iRun Digital Magazine subscription
• →Charity fundraising opportunities

Is there an environmentally friendly registration option?

• →A Green Bib option is available across all events, allowing participants to redirect part of their registration fee to the Desjardins Charity Challenge fund instead of receiving a medal or mailed amenities.