IRONMAN 70.3 Western Massachusetts
June 7, 2026
The IRONMAN 70.3 Western Mass triathlon is back for it’s 4ht year! Enjoy a 1.2 mile downstream swim in the Connecticut River, a rolling 56 mile bike ride through the rural roads of New England, and a 13.1 mile run that takes you through downtown Springfield. Athletes will have a downriver swim in the Connecticut River which will start at North Riverfront Park finishing 1.2 miles south at Riverfront Park. They will exit the water and head to a close by transition area along the Connecticut Riverwalk. The single loop bike course will head west out of Springfield and towards the beautiful Berkshires region, through the Granville area before returning back through Westfield and West Springfield. Enjoy picturesque views and great road quality along the way of this 56 mile journey. The fast and flat run course will take you along the Connecticut Riverwalk aligned with greenery and views of the river. Be prepared to head into downtown Springfield for an urban vibe finish line.
Sunday drivers can expect to see closures and reduced lanes on East Columbus Avenue, Hall of Fame Avenue, Court Street, Longhill Street, and through Forest Park throughout the day.
Court Street will also be closed on Saturday for event set-up.
It should be noted that the lower level of the I-91 south garage will also be closed this weekend.
