When is Old Colony Marathon?

Old Colony Marathon takes place on May 29, 2026. That's in 2 months.

Where is Old Colony Marathon located?

Old Colony Marathon is held in Westfield, Massachusetts, United States.

What distances are available at Old Colony Marathon?

Old Colony Marathon offers the following distances: 26.2M, 13.1M.

What is the typical weather for Old Colony Marathon?

Based on historical data, you can expect temperatures between 51°F and 75°F on race day. There's approximately a 18% chance of precipitation.

Old Colony Marathon (13.1M-26.2M) - May 29, 2026 | Westfield, MA

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.