The Rotary Club of Cornwall Sunrise is holding the fifth annual St. Lawrence Marathon on April 25, 2026, to raise funds for community projects in Cornwall, Ontario.
The fitness event will take place along the city riverfront from 7:00 a.m. to 11:30 a.m. Residents and visitors can participate in several different races, including a full marathon, a half-marathon, and 5K or 10K runs.
The St. Lawrence Marathon is a certified Boston Qualifier course. The route follows the St. Lawrence River, starting at Crysler Park Marina and finishing at St. Lawrence College.
Race Director Sebastian Warner brought the event back in 2022 after it was paused during the pandemic. The race was previously known as the Cornwall Run to End MS for 17 years before it was rebranded in 2019.
The event has grown to be a significant fundraiser, with the 2025 edition donating $11,000 to 11 local groups. This year, the club has partnered with local sponsors such as Cornwall Nissan, Medical Arts Pharmacy, and Emard Bros Lumber to support the run.
