4 running, duathlon, and triathlon events in Cornwall, Ontario
From big races to Saturday morning group runs—find running, duathlon, and triathlon events and connect with the local endurance sports community.
Cornwall
4 events in Cornwall-
Mon, Feb 16, 2026 at 9:00 AMSee full details
🏃♂️ Family Day Fun Run & Relay 🏃♀️ Start your Family Day with some fresh air, friendly competition, and community fun! 📅 Date & Time Monday, February 16, 2026 Race Start: 9:00 AM 📍 Location Second Street West at Saunders Drive 🏁 Race Options 6‑ish KM Individual Run or “Family” Relay Teams of family members or friends work together to complete the full distance.Be creative—run solo, run in pairs, mix and match! 📌 Course Format * Two 1.5 km out‑and‑back segments * Each segment is completed twice * Total distance: approximately 6 km 🔮 Prediction Run No watches. No trackers.Just guess your finishing time, run by feel, and see how close you can get. 🙌 Volunteers Needed
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Sun, Mar 15, 2026 at 9:00 AM
Third Sunday of each month - October to March
October 19, 2025
November 16, 2025
December 21, 2025
January 18, 2026
February 15, 2026
March 15, 2026
A no-frills, self-timed series. We run in sun, (freezing) rain, hail, sleet, snow, snow drifts, slush - and that is in the first 10 minutes.
We will once again be doing a group start at 9:00am.
Course:
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Sat, Apr 25, 2026 at 7:00 AM
The St Lawrence Marathon - marathon, half-marathon, 10K and 5K run. We're a certified Boston-Qualifier.
The marathon start time is at 7am
18 and under, 70-79 will get 40% off
80+ can run for free
This discount will be applied automatically at checkout.
There are no refunds or deferrals. Please purchase the Race Roster Protection if you want to be eligible for a refund.
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Sun, Jun 28, 2026 at 9:00 AMSee full details
Our 3rd Annual Charity Run in Cornwall, ON! What is Run For Cornwall? Organized by Mercy 4 Mankind, a subsidiary of the Ahmadiyya Muslim Youth Association (AMYA), to raise funds for the Agape Centre. Our goal is to support the local community and bring people together for a noble cause. We are excited to hold our First annual Run for Cornwall charity event. The Run brings out serious and casual runners and walkers from all walks of life. Participants come with their families and enjoy the festivities of the day. Event Details: Location: Lion’s Club Bandshell/Lamoureux Park,100 Water St E, Cornwall, ON K6H 6G4 Event Date: June 28, 2026 09:30AM > Registration Starts 09:45AM> Opening Ceremony 10:15AM> 5K Run Starts 10:25AM> 3K Run Starts 10:30AM> 1K Family Fun Walk Starts 12:00AM> Closing Session with Awards Distance: 1K Family Fun Walk, 3K Run & 5K Run. Distance: 1K Family Fun Walk, 3K Run, 5K Run. 5K Run Challenge yourself as a runner! Run for Cornwall is the premiere run in the Cornwall
area for professional runners. Your energy fuels the noble cause that will shape the future of Cornwall. 3K Run Come in groups, sprint alone, or make it a family goal. Especially suited for first-time runners that aim to make a difference with their 3K endeavor. We will support you all along the way and build your confidence for the 10K run for next year. 1K Fun Walk We welcome everyone to join in and walk in support of the Agape Centre. Let’s walk together at Lion’s Club Bandshell Twitter Facebook F
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