9 races across Massachusetts in May 2027. Your next race, seen from above.
100% trail 10K loop run up to three times
3,500+ ft of climbing on the Holyoke Range ridge
Ten flat, fast laps along Bostons scenic Charles River
Ocean visible for most of the 13.1-mile Cape Ann route
Out along New England's rugged Wapack Trail ridge
Finishes at Harpoon Brewery in Boston's Seaport District
Runs past Cheshire Reservoir and the Hoosac Mountains
3-mile road climb to Wachusett Mountain's summit
Crosses the Longfellow Bridge over the Charles River
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.