Prepare for an exceptional running experience at the Old Colony Marathon and Half Marathon, set to take place on May 29, 2026, in scenic Westfield, MA. This USATF-certified event, known for being a Boston Qualifier, offers both a full marathon (26.2M) and a half marathon (13.1M) through the picturesque Stanley Park. The course is largely a paved, multi-loop design, with marathoners completing 14 laps and half marathoners seven laps, each approximately 1.84 miles, along with short out-and-back sections. Runners can expect a mostly flat terrain, making it one of the flatter and more aesthetically pleasing courses in its series, featuring beautiful scenery including a Japanese Garden.

The Old Colony Marathon is celebrated for its excellent organization and a personal touch, often run by a dedicated race director and his family. A key feature of the race is the highly accessible aid station located conveniently at the start/finish line, which has been praised by past participants for being extremely well-stocked with hydration and nourishment, including homemade food. Typical race day conditions in late May offer pleasant running weather, with highs around 75°F and lows around 51°F, and only an 18% chance of precipitation. While primarily a flat, paved course, some runners have noted sections of uneven asphalt.

As part of the larger New England Challenge series, this race provides a unique, intimate atmosphere that allows runners to feel a strong sense of community. The start and finish are located just inside the Main Entrance of Stanley Park, offering a consistent and manageable environment for runners aiming for a personal best or a Boston Qualifying time.