50K ultramarathons in Connecticut, United States

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

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

Demanding, hilly 50K on paved and dirt roads through rural Roxbury, with a longer out-and-back and repeated Hemlock Loop circuits.

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

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

Fast, mostly flat paved loops around Lake Waramaug, with rolling rhythm, wide water views, and a classic New England ultra atmosphere.

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