Course
Marathon42.2 km
Half Marathon21.1 km
10K10 km
5K5 km
2K2 km
Key dates
- !RegistrationOpen now
- ★Race daySun 30 May 2027
Date confirmed with the organiser · entry window checked by RunCalendar
About
Tamarack Ottawa Race Weekend is Canada's capital marathon, with routes passing Parliament Hill and running alongside the Rideau Canal. Marathon, half marathon, 10K, 5K and 2K options are on offer each May.
Your next race, seen from above.
Save Tamarack Ottawa Race Weekend to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
Get RunCalendar
Save Tamarack Ottawa Race Weekend to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
In these collections
More races in Ontario All ›
-
Honda Waterfront Run
Along Barrie's Kempenfelt Bay waterfront trail
-
-
-
Run this event? Claim it on runcalendar.com
Visit event website ›
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.