Trail ultramarathons in Connecticut, United States

Casual-paced ultrarun emphasizing camaraderie, pedestrian-friendly routes, and essential self-supported hydration, with unique aid stops along the course.

1.776-mile loop through historic Putnam Memorial State Park, featuring multiple timed race options in a landscape tied to Revolutionary War history

5k scenic trail loops at Crandall's Park, flexible 8-hour format, raffle prizes, and festive potluck atmosphere honoring 50 years of the Shenipsit Striders

Three-loop 50K course featuring rugged singletrack, multiple climbs over Cobble Mountain, more than 7,000 feet of elevation gain, and scenic park views.

Woodland course through Roosevelt Forest, tree-lined trails and natural scenery in historic Stratford, CT

31 miles of Connecticut roads with stops at five donut shops, a course featuring hot pavement, challenging back roads, and a 7-hour cutoff

Rugged 50k through southern Connecticut woodland preserves, with rolling forest roads, singletrack, rocky footing, and relentless undulation

Rolling single track and meandering farm trails through Gurski Farm and Williams Park, featuring scenic views and varied country terrain

400-minute trail loop challenge with rolling hills, rocky and root-laden sections, grassy stretches, and roughly 275 feet of elevation gain per loop

Out-and-back loops on the Tower Trail in Sleeping Giant State Park, 600'+ elevation gain per loop, winding gravel paths, repetitive ascents and descents

1.6-mile loops around Lake Wintergreen with 65 feet elevation gain per loop, supportive atmosphere, capped at 50 participants, all-weather event

Brutally demanding park course with smooth carriage roads, rocky twisting singletrack, steep vertical, technical footing, and serious climbing

123-mile point-to-point crossing with mixed trail and road, a long, demanding effort across one of the nation’s smallest states.

Three 10.5-11 mile loops on rolling, rocky Metacomet Trail singletrack and double-track, with uneven footing and constant ups and downs.

Rugged Connecticut course with steep ascents, rocky Regicides Trail, summit climbs, and challenging blue blazes from West Rock Playground to Prospect

Well-marked Roosevelt Forest loop with single- and double-track trail, roots, rocks, rolling hills, bridges, and quiet woodland scenery

Hilly, technical 3.11-mile loop on Ragged Mountain with hourly starts and last runner standing format

Scenic gravel trails through camp grounds with a festive finish and community atmosphere

Counter-clockwise loops on moderately technical singletrack, 170 feet of elevation gain per loop, with variable summer weather in scenic Ansonia Nature Center

New England trails featuring rolling hills, single and double-track, roots, rocks, and out-and-back sections across 100 miles, 100K, or 50 miles