TCS Toronto Waterfront Marathon
Toronto Waterfront gives runners a major Canadian fall marathon with lakefront miles, Sportstats timing, and a fast Boston-qualifying course.
Quick facts
- Large Canadian city marathon with strong international and domestic demand.
- Boston-qualifying race with a fast waterfront-course reputation.
- Marathon entry can sell out early, so planning ahead matters.
- Official registration runs through Race Roster.
About the TCS Toronto Waterfront Marathon
Canada Running Series' flagship marathon draws a deep city field to Toronto each fall, with the full marathon, half marathon, and 5K sharing a major downtown weekend.
Course
The marathon uses a Toronto road course built around downtown streets and waterfront sections. It is a good fit for runners who want city-race scale without leaving the late-season goal window.
Race-day weather
Mid-October in Toronto can be crisp, damp, windy, or surprisingly mild. Lake Ontario exposure makes layers and patience with gusts useful on race morning.
Past TCS Toronto Waterfront Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Sunday, October 18, 2026 | Upcoming | — |
| 2025 | Sunday, October 19, 2025 | Completed | Open results |
| 2024 | Sunday, October 20, 2024 | Completed | Open results |
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TCS Toronto Waterfront Marathon FAQ
When is the TCS Toronto Waterfront Marathon?
The 2026 TCS Toronto Waterfront Marathon is on Sunday, October 18, 2026.
Is TCS Toronto Waterfront Marathon a Boston qualifier?
Yes. TCS Toronto Waterfront Marathon is a Boston Marathon qualifier. To use the result, you must run the certified full-marathon course within the qualifying window and meet the current standard for your age and gender. Meeting the standard lets you apply but does not guarantee entry, and net-downhill courses can receive a time adjustment under current B.A.A. rules. Review the Boston qualifying times and downhill-course rules, or browse upcoming Boston qualifier marathons.
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