New England Green River Marathon

Race facts

• The course covers 42.2 km.
• It takes place on a Sunday, August 23, 2026 — summer in this part of the world.
• The closest comparable running event is 10th Annual Runners Helping Neighbors 5K Run / Fitness Walk in Westminster, 59 km away, on August 9, 2026.
• 12 of the 12 most similar events take place in the same month.