Around 15,000 runners and walkers are expected to pound the pavement on Sunday in the GoodLife Fitness Toronto Marathon.

The three main events are: full marathon, half marathon and 5K run. Race maps

The full marathon begins at 7:30 a.m. behind Mel Lastman Square on Beecroft Avenue. The finish line is at Ontario Place Drive on the south side of Lake Shore Boulevard at Ontario Place. Route and details

The half marathon begins at 8:30 a.m. behind Mel Lastman Square on Beecroft Avenue. The finish line is at Ontario Place Boulevard on the south side of Lakeshore Boulevard at Ontario Place. Half marathon route and details

The 5K run gets underway at noon, and will start and finish at Ontario Place. It starts on Remembrance Drive just east of Ontario Place Boulevard, with the finish line on the south side of Lake Shore Boulevard. 5K route and details

Road closures will begin at 5 a.m. Sunday, and the main segment of the race will take place on Yonge Street from Finch Avenue to Davenport Road.

Some lane restrictions will take place in the area bounded by Bayview Avenue in the east, Royal York Road in the west, Lake Shore Boulevard in the south and Finch Avenue in the north. Click here for a full list of the roads impacted.

A number of ramps on the Gardiner Expressway and Don Valley Parkway will be closed from 7 a.m. to 3 p.m., including:

• Gardiner Expressway eastbound off-ramp to Jarvis Street — access to Jarvis Street is closed, access to Lake Shore Boulevard remains open.
• Gardiner Expressway westbound off-ramp to Sherbourne/Jarvis — access to northbound Sherbourne Street is open, access to Jarvis Street is closed.
• Gardiner Expressway westbound off-ramp at Spadina Avenue — access to westbound Lake Shore Boulevard is closed.
• The Gardiner Expressway westbound on-ramp to Spadina Avenue — access to westbound Lake Shore Boulevard is closed.
• The Don Valley Parkway Bayview/Bloor off-ramp to southbound Bayview Avenue is closed.

In terms of the TTC, the subway doesn’t start until long after the runners and walkers have. That’s because the subway doesn’t start running until 9 a.m. on Sundays.

The race is actually starting a half-hour earlier, at 7:30 a.m., to lessen the impact on traffic.

680News asked Toronto Marathon director Jay Glassman if an earlier subway would make a difference.

“That would be amazing. I’ve been lobbying for that for 18 years. I don’t know if it’ll happen in my lifetime, if we’ll ever see an earlier Sunday subway. That would be wonderful if it did,” said Glassman.

He said the subway is always an option for races he’s been involved in, in other world class cities.

But TTC spokesman Brad Ross told 680News there hasn’t been any serious discussion about it.

“There are costs involved. While there are a lot of people who tend to race, typically our ridership on a Sunday morning for the subway would be very low, and I think it would just be cost prohibitive,” said Ross.

The Toronto Marathon generates as much as $20 million for the city’s economy and raises $1.5 million for charity