St. Mary’s 5K

We are thrilled to announce our school's fourth annual 5K event, and we want you to be a part of it! Lace up your running shoes and join us for a fun-filled morning of St. Mary school spirit and community bonding. This event is open to everyone. Your participation will be contributing to a great cause, with proceeds benefiting our school’s programs and initiatives. So gather your friends, family, and classmates, and let’s all come together for a memorable day of fun, fitness, and fundraising. Save the date and run, walk, or jog your way through the finish line and toward a healthier and happier school community. Let’s make this 5K an event to remember!

Race day will also include a ticketed raffle for prizes such as fitness classes and gift cards to local businesses! 

The St. Mary's 5K is an officially timed race that starts and finishes at St. Mary's School. Participants will receive race t-shirts, finish line photos, a free raffle ticket, and official race results. 

Join fellow runners on September 26, 2026 for the St. Mary’s 5K. It's a fantastic 5K featuring a flat and fast course in Brookline.