Ottawa Marathon - Tamarack Race Weekend 2025 May 24~25 #sports #marathon #fitness #exercise #lifestyle #health #running #otta

Tamarack Ottawa Race Weekend is more than personal bests and finish line photos. It’s about community – runners, walkers, and supporters coming together.

All races start at Ottawa City Hall

Saturday, May 24
Ottawa Kids Marathon– 2:00 p.m.
Ottawa 2K – 3:00 p.m.
Ottawa 5K – 4:00 p.m.
Ottawa 10K presented by Otto’s Ottawa – 6:30 p.m.

Sunday May 25
Tartan Ottawa International Marathon – 7:00 a.m.
Ottawa Half Marathon presented by Desjardins – 9:00 a.m.