Ultra Running Hub West Chesterfield, MA, United States · Saturday, May 30, 2026
Chesterfield Gorge 100 Km Ultra Race
Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.
What the course asks
DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, May
Regional 2001-2020 average for May — NASA POWER, grid elevation 357 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 100km | 12 | Matthew Brown · 12:26:21 | Bonni Pres · 17:05:44 |
| 2025 | 100km | 11 | Aaron Gott · 13:43:14 | Jennifer Higgins · 12:55:01 |
| 2024 | 100km | 25 | Wouter Hoogkamer · 08:45:38 | Lila Gaudrault · 09:22:00 |
| 2023 | 100km | 8 | Bryce Spare · 10:31:06 | — |
| 2022 | 100km | 10 | Bill Warner · 10:25:26 | Maria Chevalier · 12:41:35 |
| 2021 | 100km | 11 | John McElroy · 09:39:09 | Maria Chevalier · 13:39:30 |
| 2019 | 100km | 21 | Carsten Braun · 10:21:06 | Maureen Gillespie · 10:01:44 |
| 2018 | 100km | 15 | Matt Klein · 12:55:26 | Maureen Gillespie · 10:43:38 |
The field grew 9% between 2025 (11) and 2026 (12). 17% of the 2026 field were women.
DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Gear for this race
Chosen for 100 km of trail.
- Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
- Hydration Vests Flask capacity for 100 km, without the bounce.
- Headlamps 100 km almost certainly means running into the night.
- Accessories Chafe and blisters end more 100 km races than fitness does.
Overview
The Chesterfield Gorge 100 Km Ultra Race, organized by Amy Rusiecki, is a 100-kilometer trail race in West Chesterfield, MA. Its field size is larger than 22% of 317 peer 100k races. The race has been held 8 times, with the first edition in 2018.
The course is a continually rolling jeep trail, described as not technical, with some rocks and permanent mile markers. Runners complete one or more out-and-back sections, each covering 12.5 kilometers for a total of 25 kilometers per loop.
Similar races
Other 100K trail ultras, closest in distance first.