Massachusetts · Marathon

New England Green River Marathon

New England Green River Marathon is a marathon event held in Greenfield, Massachusetts. It was last held on August 23, 2026 and is usually run in August; the next date hasn't been announced yet. About 348 runners take part across all distances.

Usually held
August
Location
Greenfield, MA
Field size
~348 runners

Race details

Last held
August 23, 2026
Usually held in
August
Distances
Marathon
Field size
About 348 runners
Registration
raceroster.com

Registration, course & weather

Start time
7:00 AM EDT
Course profile
Point-to-point course; Mostly trail, some road; Boston qualifier
Typical race-day weather
about 64°F at the start, 98% humidity, 7 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo historical archive (gridded reanalysis), checked October 8, 2026)

About the New England Green River Marathon

New England Green River Marathon in Greenfield, MA.

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New England Green River Marathon: common questions

When is the New England Green River Marathon?
The next date hasn't been announced in the listing yet. The race is usually held in August. Check the organiser's website for the official date.
Where is the New England Green River Marathon held?
In Greenfield, Massachusetts.
What distances does the New England Green River Marathon offer?
Marathon.
How many people run the New England Green River Marathon?
About 348 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
How do I register for the New England Green River Marathon?
Registration is handled by the organiser at raceroster.com. Entry fees, caps and deadlines are set there.
Is registration open for the New England Green River Marathon?
Registration status as last checked October 20, 2026: completed.
What time does the New England Green River Marathon start?
7:00 AM EDT.
What is the course like at the New England Green River Marathon?
Point-to-point course; Mostly trail, some road; Boston qualifier.
What is race-day weather usually like at the New England Green River Marathon?
about 64°F at the start, 98% humidity, 7 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo historical archive (gridded reanalysis), checked October 8, 2026).