2026 TCS Toronto Waterfront Marathon
Toronto, ON
Sat, Oct 17, 2026
In 7 days · Sat, Oct 17, 2026
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Saturday, October 17th, 2026
100 Queen St W., Toronto ON
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46–59°F · some rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
40–54°F
rain
2024
36–56°F
dry
2023
47–58°F
dry
2022
41–50°F
rain
2021
50–59°F
dry
2020
38–55°F
dry
2019
44–49°F
dry
2018
38–50°F
dry
2017
39–63°F
dry
2016
57–68°F
dry
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Race-day forecast · Saturday, Oct 17
Rain likely · 40–50°F
Saturday, Oct 17starts near 40°F · 13% chance of rain · wind up to 18 mph
About this race
The TCS Toronto Waterfront Marathon is Canada’s premier running event and the grand finale of the Canada Running Series. Since 2017, the race has served as the Athletics Canada National Marathon Championships and has doubled as the Olympic Trials.
With innovation and organization as our guiding principles, we stage great experiences for runners of all levels, from Canadian Olympians to recreational and charity runners. Our mission is “building community through the sport of running” and we are committed to making sport part of sustainable communities and the city-building process.
Stay connected to TCS Toronto Waterfront Marathon and your fellow runners through social media using our official race hashtags #TOWaterfront42K #ChooseTOrun .
Course map
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