The Stouffville Main Street 5K is a vibrant annual event held in Whitchurch-Stouffville, Ontario, dedicated to supporting the Markham Stouffville Hospital Foundation. Since its inception in 2023, the event has rapidly grown in both participation and fundraising, drawing over 1,300 runners and walkers in recent years. The race is a true community celebration, welcoming competitive athletes, recreational runners, families, and children alike.

The event is renowned for its inclusive and festive atmosphere, with wave starts to accommodate all paces and strollers welcome on the course. Proceeds from the race directly benefit the local hospital, with participants encouraged to fundraise as part of their entry. The Stouffville Main Street 5K has become a highlight of the town’s calendar, typically taking place on Father's Day in June, and is a testament to the community’s spirit and generosity.

- Flat, fast, and accessible 5K road course along Main Street
- Strong community engagement and family-friendly atmosphere
- Proceeds support the Markham Stouffville Hospital Foundation
- Wave starts and strollers permitted for inclusivity
- Kids 1K Dash for children aged 12 and under
- Held annually in June, typically on Father's Day