Ironman Western Mass 2024 Dates. Some of the finest and most unique museums in the country are situated in western mass. Registration for the general public.

Embrace the urban beauty of springfield and picturesque hills of new england at ironman 70.3 western massachusetts. 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 along the riverside and finishing in downtown springfield.