SM
May 24, 2026
Full Marathon, Half Marathon, 10K, 5K, Kids' Run
Back to search
Tamarack Ottawa Marathon
Canada's capital marathon along the Rideau Canal and past Parliament Hill - a fast, flat BQ course.
Verified listing
Source: official site
Updated today
Official registration linked
Race facts
Core planning details from the race record.
- Race date
- Sunday, May 24, 2026
- Location
- Ottawa, Ontario, Canada
- Distance
- Full Marathon, Half Marathon, 10K, 5K, Kids' Run
- Price
- CAD 130
- Registration
- Official registration linked
- Organizer
- Run Ottawa
Distances
Full marathon
Half marathon
10K
5K
Planning timeline
- Registration opens
- Not published
- Registration closes
- Not published
- Race day
- Sunday, May 24, 2026
Not sure this race fits your season?
The race page stays free. Membership is the support layer for runners who want help deciding, training, and staying accountable once a race starts to matter.
- Before you register Talk through course fit, travel friction, timing, and whether this race belongs in your year.
- After you commit Use club rhythm to keep the training block moving after the exciting first week.
- When plans change Get a practical place to rethink the goal instead of dropping the plan silently.