18OCT

2026 TCS Toronto Waterfront Marathon

Sunday, October 18, 2026· 8 a.m.· in 22 days

Toronto, Ontario

42km21km5km1km

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.

— from the organizer's listing, read it in full

Open

Registration open — closes October 15, 2026.

Listed via Race Roster. RaceFinder links you to the official page — always confirm date and details with the organizer. Your race? Update or claim this listing free →

What race day is usually like

15°/ 7°

typical high / low

37%

of days see rain

In Toronto this week of the year it is wet about 4 days in 10. This is what the last ten years did — not a forecast. Check one a few days out.

Daily records 2016–2025 for Toronto, via Open-Meteo.

Events on the day

Guide5km
In-Person Marathon42km
In-Person Half Marathon21km
In-Person 5K5km
IMPACT BIB - In-Person Marathon42km
IMPACT BIB - In-Person Half Marathon21km
IMPACT BIB - In-Person 5K5km
Virtual Marathon42km
Virtual Half Marathon21km
Virtual 5K5km
TCS Team (42K) Employee42km
TCS Team (21K) Employee21km
TCS Team (5K)5km
TCS Team (42K) Client42km
TCS Team (21K) Client21km
Bibs 4 Change - Marathon (42.2K)42km
In-Person Kids Race1km

Where

Directions ↗

Toronto, ON, Canada

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