Half Marathon races near Boston

Boston Training Notes

Boston hosts 18 Half Marathon races in 2026 within 80 km of the city centre — upcoming dates, recurring series, and other races nearby, all in one place.

Locals run the Charles River Esplanade first, because the bridges let you pick your distance and the bathrooms and fountains make long-run logistics easy. You can run an 8-mile loop between Harvard Bridge and Longfellow Bridge, and the Storrow Drive section gives you 3 miles when you want clean Z2. The Emerald Necklace runs over seven miles through continuous green spaces all the way to the Arnold Arboretum, with Jamaica Pond, Back Bay Fens, and Franklin Park in the mix. Boston Run Club meets at DICK'S House of Sport on Saturdays at 8:00 am for 5 to 16+ miles, and Heartbreak Hill Running Company brings Signature Speed on Tuesdays and Thursdays. The Boston Marathon is the anchor event, with Run for Recovery 5K and DAV 5K Boston filling the calendar.

Locals ride the Charles River Bike Path for a 23-mile loop, then use the Minuteman Bikeway through Arlington, Lexington, and Bedford to reach Walden Pond. Charles River Wheelers keeps the group-ride scene busy with hundreds of rides annually, and New England Randonneurs puts the Boston Brevet Series on the long-day calendar. Greater Boston NEMBA covers the MTB side when singletrack calls. The typical loop runs 7 km with 220 m of elevation. The west side brings the hilly countryside, while Concord, Carlisle, Dover, Needham, Blue Hills, and Bellevue Hill handle the climbing work.

Spring and Fall are the best months, and Boston feels built for base miles when the air is steady and the paths stay busy. Summer hits 5 °C, so locals run early, keep intervals honest, and save longer rides for cooler windows. Winter changes the rhythm. Winter drops to 1 °C, storms can bring heavy snow, the immediate coast often gets more rain than snow, and the smart move is layers, good gloves, shorter Z2, and trail or indoor options when the footing gets messy.