Available distances
About
Wapack and Back Trail Races are held on May 8, 2027, in Ashburnham, Massachusetts. Three trail distances are announced: 50 miles (80.5 km), 43 miles (69.2 km) and 21.5 miles (34.6 km). Start times and elevation gain are not listed in our records.
Only seven miles separate the two longest formats, so the real question is not the terrain but your experience: the 34.6 km makes a solid first long trail race after a season of half marathons, while both ultras assume you have already spent six to eight hours on your feet. Whichever you choose, train the descents — on this kind of rocky ridge running they cost more than the climbs.
Prepare for Wapack and Back Trail Races with RunRun
An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.
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Races nearby
Other upcoming races around Ashburnham.
Friends of the poor 5k
Oct 3, 2026 · New Ipswich, NH · 7 mi away
3.1 mi
Wapack Wilderness Trail Race
Sep 19, 2026 · New Ipswich, NH · 9 mi away
18 mi
Ghost Train Trail Races
Oct 17, 2026 · Brookline, NH · 14 mi away
15 mi · 30 mi · 30 h
Davis Hill Dragon Dash
Oct 4, 2026 · Holden, MA · 19 mi away
3.1 mi
Mahar Cancer Fund Fun Run 5K
Oct 17, 2026 · Orange, MA · 21 mi away
3.1 mi
Operation Delta Dog - 5K Run to Rescue
Sep 20, 2026 · Nashua, NH · 22 mi away
3.1 mi