St. Lawrence Marathon: Meet us at the Finish Line.

April 20, 2026

CORNWALL, ON – The energy is building as the St. Lawrence Marathon prepares to return this Saturday, April 25. For the 2026 season, the event has officially reached capacity with over 1,000 runners registered, solidifying its reputation as one of the premier racing events in Eastern Ontario.

As a certified Boston Marathon qualifier, the race draws athletes from across Canada and the United States to tackle the fast, scenic route along the St. Lawrence River. While registration is now closed, the community is invited to head to the waterfront to cheer on the participants as they push for their personal bests.

“With over a thousand runners hitting the trails, the atmosphere this year is going to be electric,” says Shauna Baggs, Cornwall Tourism. “We are encouraging locals to grab a coffee, bring a cheering sign, and head down to the waterfront to help welcome these athletes home.”

Where to Catch the Action

The heart of the excitement will be at St. Lawrence College, which serves as the official finish line for all four race distances (5K, 10K, Half, and Full Marathon). Spectators can also find great vantage points along the Cornwall Riverside Trail to cheer on runners as they navigate the final leg of their journey.

Event Schedule & Cheer Times

If you want to be part of the finish line energy, plan to arrive at St. Lawrence College during the following windows:

  • 7:00 AM: Marathon Start (at Crysler Park Marina)
  • 9:00 AM – 10:30 AM: Start of the Half-Marathon, 10K, and 5K races at the College.
  • 9:30 AM – 1:00 PM: Watch as marathoners and local runners complete their journey.
  • 11:30 AM: Awards Ceremony at the College campus.

Spectator Tips

  • Parking: Visitors are encouraged to use the East Parking Lot at St. Lawrence College. Please be mindful of runners on the paths and follow volunteer instructions.
  • Bring the Noise: Cowbells, cheering sections, and encouragement go a long way.

For more information on the course and future race dates, visit the St. Lawrence Marathon website.

Additional Events

Looking for other fun things to do in Cornwall? Make sure to check out ourEvents page for info on upcoming events in the area!

#ExploreCornwallON

Looking for other fun things to do in Cornwall? Check out theExplore section of our website for other fun-filled activities to keep you busy. Better yet, consider extending your stay with a night at one of our great accommodations!

Got a question?

Got a question? Need recommendations? We’re here to help! Call us at 613-938-4748 or email us at info@cornwalltourism.com, and we’ll be pleased to help you with any questions you may have! Also make sure to check us out on Facebook and Instagram for updates and more great reasons to visit Cornwall!

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