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Reliant Foundation 5K
Course loops around Indian Lake in Worcester
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Houghton's Pond Trail Races
7-mile course climbs ~700 ft in Blue Hills Reservation
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Oktoberfest 5K
Starts and finishes at Mayflower Brewing in Plymouth
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Fall Classic 5K
Runs down Massachusetts Avenue in downtown Cambridge
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Groton Town Forest Trail Races
Trail race in Groton Town Forest, held since 1998
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Boston 10K for Women
Founded in 1977 as the Bonne Bell Mini Marathon
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Nantucket Half Marathon
Passes Smooth Hummocks Coastal Preserve on Nantucket
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Cape Cod Marathon
One-loop course through Falmouth's Sippewissett Hills
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Run for the Hills
A Berkshires run benefiting land conservation
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Feet for Flippers 5K
Starts at the National Marine Life Center in Bourne
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Run For The Revolution
Runs through Pittsfield State Forest
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Baystate Marathon
18th-highest Boston-qualifying rate nationally
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Ravenswood Trail Race
Loops singletrack and carriage roads in Ravenswood Park
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Around Cape Ann Half Marathon
Runs Cape Ann's coast since 1933
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Happy Valley Half Marathon
Climbs Kennedy Street near mile 4, then rolls downhill
Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
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.