The Demi-Marathon Sun Life de Saint-Jean-sur-Richelieu is a celebrated annual running event in Saint-Jean-sur-Richelieu, Quebec. Scheduled for April 12, 2026, the race takes place at Parc Gerry-Boulet and is part of the well-known "Courses Thématiques" series, which organizes themed races throughout Quebec. The event has seen consistent growth, with over 2,300 participants in 2025, reflecting its popularity and strong community support.

This event is renowned for its scenic, flat courses that wind through the historic Old Saint-Jean district and along the picturesque Richelieu River. The race is designed to be accessible for runners and walkers of all levels, offering a variety of distances and a festive atmosphere. In addition to promoting physical activity, the event supports local causes, with a portion of proceeds benefiting Fondation Santé, further strengthening its ties to the community.

The Demi-Marathon Sun Life de Saint-Jean-sur-Richelieu features entirely paved, flat road courses. The routes traverse the historic Old Saint-Jean district and follow the Richelieu River, offering minimal elevation change and making the event accessible to runners and walkers of all abilities. The terrain is urban and scenic, with no significant hills, ensuring fast times and a pleasant experience for participants.

- **Scenic, flat courses** through Old Saint-Jean and along the Richelieu River
- **Six event distances**: 21.1 km, 10 km run, 10 km walk, 5 km run, 5 km walk, 1 km kids run
- **Community support**: Proceeds benefit Fondation Santé
- **Participant perks**: Technical shirt, medal, meal, chip timing, pace bunnies
- **Family-friendly**: Kids run and walking options
- **Strong participation**: Over 2,300 runners in recent years