New Haven · United States

Half Marathon races near New Haven

6 races in 2026 next one in 31 days

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Race calendar

Upcoming Half Marathon races near New Haven

AUG 2

Run · road · Half Marathon

64th Annual Ocean Beach/John & Jessie Kelley Half Marathon

New London · 69 km away

Run · road · Half Marathon

Newtown Community Running Event

Newtown · 32 km away

SEP 4

Run · road · Half Marathon

Faxon Law New Haven Road Race

Run · road · Half Marathon

Gulf Beach Half Marathon

Milford · 16 km away

Run · road · Half Marathon

Hamptons Marathon & Half

Southampton · 65 km away

+1 more Half Marathon racesShow fewer ↓

Run · road · Half Marathon

Hogsback Half Marathon

Colebrook · 76 km away

New Haven · 80 km

6 races mapped View on map →

Recurring Half Marathon races near New Haven

Races that repeat — weekly, monthly or yearly

Great South Bay Run

The Great South Bay Run starts and finishes at Bay Shore Marina Park in Bay Shore, New York, with the Great South Bay and Fire Island visible from the finish. This annual road-running series, sponsored by Northwell Health, offers three USATF-certified courses: a half marathon, a 10K, and a 5K Family Fun Run. The routes guide runners through Bay Shore’s historic downtown before proceeding along residential streets near Brightwaters Lakes, Cascades, and Canals. The field typically numbers between 500 and 1,000 participants, giving it the feel of a local Long Island race day rather than a large city marathon. The program accommodates half-marathoners, 10K runners, families, and newer runners.

Garavel SoNo Half Marathon | 5K

Mohawk Mountain Race

Mohawk Mountain Race is a fall trail race at Mohawk Mountain Ski Resort in Connecticut, offering distances from 5K through marathon. The mountain, typically used for skiing and snowboarding, features routes that climb and descend on steep resort trails rather than rolling through a flat park. Even the 5K route includes 1,332 feet of elevation gain, the 10K doubles that loop for 2,664 feet, and the marathon covers 6,338 feet across two half-marathon loops. The shorter races remain on the ski mountain grounds, while the half marathon extends into Mohawk State Forest, totaling 3,169 feet of climbing. The half marathon is also part of Connecticut’s Blue Blazed Trail Running Series, which features races on or partly on the Blue-Blazed Hiking Trails and promotes awareness of the Connecticut Forest & Park Association’s trail maintenance efforts. Steep Endurance sponsors the event, targeting runners seeking a challenging trail day with consistent climbs, sharp descents, forest sections, and mountain fall foliage.

The Ridgefield Road Fest 50th ANNIVERSARY: 1/2 Marathon, 7-Miler, & Iris Fund 5K

The Ridgefield Road Fest begins at the Boys & Girls Club of Ridgefield in Ridgefield, Connecticut, offering three road-race options: a half marathon, a 7-miler, and a 5K. This October running event features distances of 21.1 km, 11.3 km, and 5.0 km. The course provides runners a choice between a half-marathon effort, a middle-distance road race, or a shorter 5K. The Iris Fund benefits from the 5K, and the series is celebrating its 50th anniversary, adding local history to the event.

Reservoir Run Half Marathon, 5K, Kids Fun Runs & Family Stroll

Pocantico Hills Races

Hillacious Half Marathon

The Hillacious Half Marathon is a small road half marathon in Litchfield, Connecticut. It starts at 10:00 AM and has a deliberately bare-bones feel. The race, now in its seventh year, costs $50 to enter. Its challenging course is designed to reflect the grit, determination, and sacrifice of military service. The route goes through Litchfield, an old New England town featuring historic landmarks like the Litchfield Green, the oldest publicly funded town green in the United States. There is no prize money, so participants are typically runners seeking a hard effort and personal satisfaction. Proceeds benefit local military personnel and families in need. Winners' names are engraved on trophies displayed at Morgan-Weir American Legion Post 27.

BROOKHAVEN TRAIL HALF MARATHON and 5 MILE

The Brookhaven Trail Half Marathon and 5 Mile is a fall trail race held in Brookhaven State Park, Wading River, New York. Both the half marathon and 5-mile race begin at 9:00 AM. Participants can select the full half marathon on the park's trails or a 5-mile route, accommodating both those seeking a challenging trail run and those preferring a shorter outing. Race-day check-in starts at 7:30 AM by the large red tent. Cash or card are accepted for same-day registration. The course winds through protected Suffolk County woodlands, featuring single-track paths, fire trails, sandy areas, and sections alongside ponds. The half marathon begins near the park entrance on William Floyd Parkway. Custom wooden finisher medals are awarded to all half marathon participants. Strong Island Running Club provides professional timing. Awards are given for overall finishers and age groups ranging from 14-and-under to 85+. Cash prizes are also presented to the top male and female half marathon finishers. The event supports Team Red White and Blue through fundraising, and participants are encouraged to bring non-perishable food items for Island Harvest.

Tarrywile Half Marathon

The Tarrywile Half Marathon is a November trail race held in Tarrywile Park, Danbury, Connecticut, featuring exclusively unpaved park trails. The event includes a 10K, half marathon, and marathon, all utilizing a consistent hard loop structure: one loop for the 10K, two for the half, and four for the marathon. This course is not a road race with some dirt; it consists of Northeast single track, rocky and rooty sections, and sufficient climbing to significantly slow runners compared to their typical road pace. The 10K involves approximately 1,500 feet of climbing, the half marathon around 3,000 feet, and the marathon reaches about 6,000 feet of elevation gain. Participants gain viewpoints over Danbury and the park's lakes, though these require navigating technical, hilly trails. Hikers and walkers are permitted in the 10K and half marathon provided they can finish within the seven-hour time limit. The event maintains a small scale with a 250-person limit. The half marathon also features a standing cash challenge: bonuses are awarded to the first man finishing under 1:45 and the first woman under 2:00, with the prize pool increasing annually until claimed.

Stamford Run Club 5k/10k/Half Marathon 2026

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About Half Marathon races in New Haven

New Haven Training Notes

New Haven hosts 16 Half Marathon races in 2026 within 80 km of the city centre — upcoming dates, recurring series, and other races nearby, all in one place.

I run Edgewood, Whitney, and Prospect all in the rotation. East Rock gives the classic hill workout, and the Angel of Peace makes the top feel worth it. West Rock adds The Ridge when legs need real strain. I do the 5-mile loop when a waffle-iron run sounds right. CT runners make the scene feel like an invisible team that knows these streets by heart. Shamrock and Roll 5K, Faxon Law Road Race, East Shore 5k, and Savin Rock Waves of Hope 5k anchor the calendar.

New Haven riders get plenty without leaving town, from Long Wharf Drive, Edgewood Avenue, and Howard Avenue to the Farmington Canal Greenway and Harborside Trail. New Haven Bicycling Club covers commuters, road racers, mountain bikers, and fat tire people who like mud. Elm City Cycling, Bike New Haven, New Haven Friends of the Farmington Canal Greenway, and Bradley Street Bicycle Co-op keep the bike culture visible. Farmington Canal Heritage Trail runs 84 miles when base miles need to stay steady. The 8-mile Hamden, West Rock to East Rock route has two notable climbs. The New Haven Grand Prix brings the crit energy.

May to late September gives New Haven the cleanest training block, even when summer gets hot and humid. Summer brings average temperatures exceeding 90°F on 70 days per year, so locals move intervals early and keep Z2 honest near Long Island Sound, the Mill River, the Quinnipiac River, or the West River. October to early December stays mild to cool, and April can swing from cool to warm. Winter changes both sports fast. December and January bring wetter, heavier cold, while February and March turn crisp and windy. Locals keep running near Yale, Prospect Street, and St. Ronan Street after snow, and riders cover the face when wind chill drops hard.