Tamarack Ottawa Race Weekend

Tamarack Ottawa Race Weekend is Canada’s largest running and walking festival with six races, including the Ottawa Marathon, Half Marathon, 10K, 5K, 2K and Kids Marathon. Tamarack Ottawa Race Weekend also hosts three distance challenges: the Ottawa 17K., the Ottawa 36.1K and the Ottawa 59.2K. Over $1M was raised for charity through these events in 2024.

Tamarack Ottawa Race Weekend was named Event of the Year at the 2019 Canadian Tourism Awards, and in 2020, its title sponsor Tamarack Homes won the Sport Tourism Canada’s Canadian Sport Event Sponsorship Initiative of the Year Award. The event is one of only two running events in Canada to host a World Athletics Gold label marathon, and is host to Athletic Canada’s Canadian 10K Championships.