Toronto Marathon route and road closures for 2025

The 2025 Toronto Marathon is sprinting into the city on Sunday, May 4, bringing with it a slew of road closures along the entirety of the 42 km route.

For a 48th year running, athletes from across Toronto, Canada, and the world are gearing up to hit the city streets this Sunday to take part of the Toronto Marathon, half-marathon, 10k ,and 5k in support of the Canadian Cancer Society.

I, for one, will be sitting this one out (as I have with every other marathon that's ever happened in Toronto) and cheering my friends and their fellow competitors on from the sidelines, but if you're planning on getting out and about in the city that day, there are plenty of road closures affecting the city all day long that you should be aware of.

Route

The full marathon starts off just north of Yonge and Sheppard, travelling up to Churchill Avenue before looping back down Beecroft Road and rejoining onto Yonge, travelling south.

Runners continue travelling south on Yonge until they reach Davisville Avenue, where they are then rerouted westbound until they reach and turn south down Spadina. They then travel south east until they convene with Davenport, after which they will travel eastbound along it to Rosedale Valley Road, later joining with Bayview.

From there, they'll loop around Corktown Commons, connect with King East, Eastern and later Front Street, where they'll remain until they turn south on Bay Street and then east on Lake Shore West.

The route continues westbound along the waterfront, splitting off from Lake Shore West at Marilyn Bell Park until just beyond Humber Bay Promenade Park, at which point runners loop around and trace back eastbound along Lake Shore West until they reach the finish line at Exhibition Place. It's as simple as that!

Route map for Toronto Marathon 2025. Image via Toronto Marathon/Google Maps Data.

Road closures

The marathon kicks off at 7:30 a.m. on Sunday, and all runners must complete their race within six hours. That means that, at most, road closures will have completely wrapped up by 1:30 p.m., leaving you free to travel however freely regular Toronto traffic allows after that.

Before then, though, there are quite a number of road closures affecting areas of the city spanning from North York all the way to Etobicoke and in between that you should keep an eye on if you've got places to see.

Despite the closures confirmed below, Bloor Street will remain open in both directions for the duration of the event, with traffic officials posted at major intersections to guide traffic. The southbound Highway 401 ramps at Yonge will also reopen by 10 a.m.

The following road closures will be in effect on Sunday, May 4, starting and ending at various times as the marathon progresses:

Toronto Marathon road closures.