New England’s Longest Running Triathlon Returns August 3, 2025
The Greenfield Triathlon is back for its 41st year—and it’s still going strong. Held in the heart of Franklin County, this longstanding race has become a summer tradition in Western Massachusetts. On Sunday, August 3, 2025, triathletes of all levels will hit the water, roads, and trails for one of the most scenic and community-driven races in the region.
Whether you're aiming for a personal best or just looking for a rewarding challenge, this is a race worth showing up for.
Why Greenfield?
Set against the backdrop of Greenfield’s rivers, forests, and rolling backroads, the course offers both beauty and variety. Athletes start with a swim in the Green River, followed by a bike ride through open farmland and across the historic Eunice Williams Covered Bridge. The run brings participants back along shaded riverside roads with plenty of room for cheering spectators.
The Greenfield Triathlon stands out for its small-town feel, welcoming environment, and well-organized race day experience.
Race Options for All Levels
Whether you’re a veteran triathlete or new to the sport, Greenfield offers race formats to match your pace.
International Distance (Individual or Team)
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Swim: 1.5 km (0.93 mi)
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Bike: 40 km (24.9 mi)
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Run: 10 km (6.2 mi)
Sprint Distance (Individual or Team)
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Swim: 0.5 km (0.31 mi)
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Bike: 20 km (12.4 mi)
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Run: 5 km (3.1 mi)
Relay options are available for both distances, making this a great choice for friends or families who want to race together. Newcomers can also take advantage of a Sunday training series leading up to race day—perfect for building confidence and getting familiar with the course.
A Race with History
First held in 1983, the Greenfield Triathlon has grown from a grassroots event into one of the most respected triathlons in New England. Its staying power comes from a loyal community of athletes, volunteers, and local supporters who return year after year.
Supporting the Community
Proceeds from the event benefit the Greenfield Recreation Department, funding local programs and events that serve families throughout the region. Signing up means more than just racing—it’s a way to give back.
How to Participate
For Athletes
Ready to race? Register now as an individual or as part of a team for the International or Sprint distances.
For Volunteers
Every successful race depends on volunteers. From water stops and finish line duties to course marshaling and check-in, there are roles for everyone. It takes over 80 volunteers to make race day happen—sign up here and be part of the crew.
For Spectators
Spectators are encouraged to cheer from designated areas along the course. Parking will be available near the venue—just remember to stay outside the race boundaries for everyone’s safety.
For full details, visit greenfield-triathlon.com.
Photo credit: Greenfield Triathlon
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