50K ultramarathons in Connecticut, United States in 2026

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.