Ultra Running Hub New Preston, CT, United States · Sunday, April 25, 2027
Jack Bristol Lake Waramaug 100km Ultra Marathon
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, April
Regional 2001-2020 average for April — NASA POWER, grid elevation 149 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 100km | 20 | Hiroshi Kawakatsu · 07:28:14 | Rachel Spurrier · 10:01:06 |
| 2025 | 100km | 21 | Justin Kousky · 07:34:32 | Sierra Degroff · 08:18:26 |
| 2024 | 100km | 21 | Justin Kousky · 08:01:33 | Jennifer Hoffman · 10:32:14 |
| 2023 | 100km | 11 | Jonathan Heideman · 10:35:39 | Colleen Eren · 09:32:20 |
| 2022 | 100km | 10 | Aaron Heath · 08:46:55 | Rebecca Burke · 11:33:14 |
| 2019 | 100km | 11 | Padraig Mullins · 07:49:14 | Jessie Makela · 10:10:13 |
| 2018 | 100km | 12 | Michael Daigeaun · 07:30:51 | Kellie Brown · 11:13:01 |
| 2017 | 100km | 10 | Matt Collins · 08:30:45 | Rebecca Schwartz · 10:20:29 |
| 2016 | 100km | 9 | Scott Defusco · 09:40:52 | Angie Darbyson · 08:51:14 |
| 2015 | 100km | 10 | Padraig Mullins · 08:22:48 | Tracy Zagata · 10:49:49 |
The field shrank 5% between 2025 (21) and 2026 (20). 30% 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.
Similar races
Other 100K trail ultras, closest in distance first.