Available distances
About
The Chesterfield Gorge Ultra is a trail ultra in Chesterfield, Massachusetts, held May 29–30, 2027, at the Chesterfield Gorge reservation. Options include an 11K (6.8 miles), a 25K (15.5 miles), a 50K (31 miles), a 100-mile (160.9 km) relay and an open-format ultra.
The rolling dirt course has aid stations along the way. Runners choose how far they want to go and may adjust or change their distance during the event. Start times are flexible, and runners can complete as many laps as they like within 30 hours. It is a low-key event, focused on enjoying the scenery rather than awards or festivities, and a nonprofit fundraiser for the Hilltown Land Trust.
Highlights
- Forest
- Off-road
Prepare for Chesterfield Gorge Ultra with RunRun
An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.
- Personalized plan based on your VO2max, history and weekly availability
- Strava and Garmin sync: your sessions are analyzed and the plan adapts
- Target paces, long runs, key sessions: everything is calculated for race day
Races nearby
Other upcoming races around Chesterfield.
Veterans in Motion 5K - MA
May 1, 2027 · Williamsburg, MA · 7 mi away
1.5 mi · 3.1 mi
Western Mass Mothers Day Half Marathon
May 9, 2027 · Whately, MA · 11 mi away
9 mi
WMass Mother's Day Half Marathon
May 9, 2027 · Whately, MA · 12 mi away
13.1 mi · 9 mi
Dandelion Dash and Mushroom Mile
May 2, 2027 · Hadley, MA · 13 mi away
3.1 mi · 1 mi
Western Mass 10 & NoHo 5K
Nov 1, 2026 · Amherst, MA · 16 mi away
10 mi · 3.1 mi
7 Sisters Trail Race
May 2, 2027 · Amherst, MA · 16 mi away
12 mi