From the Organizer
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.
Distances & Pricing
Race Location
About This Sport
From Endurance Grid's Founder
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More running races in MA
Saint Catherine of Siena School 5K
5K
46th Annual Springfield JCC Father's Day Road Race
48th Annual Springfield's Big Fourth 5K!
5K
Bikes & Beers Newburyport
Frequently Asked Questions (FAQs)
- What is the St. Mary’s 5K?
- St. Mary’s 5K is a running event held in Brookline, MA. Learn more about the different endurance sports here.
- When and where is the St. Mary’s 5K?
- Saturday, September 26, 2026 in Brookline, MA at 67 HARVARD ST, Brookline, MA. Check the official event page for exact start times and wave schedules.
- How do I register for the St. Mary’s 5K?
- Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.
St. Mary’s 5K
Sep 26, 2026