Ultra Running Hub Springfield, MA, United States · Saturday, December 12, 2026
Seth’s Fat Ass 50K
Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.
What the course asks
DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 40 | Eric Ciocca · 04:02:31 | Emma Duncan · 04:22:55 |
| 2024 | 50km | 32 | Seth Cutler · 03:47:57 | Gabrielle Cook · 04:16:41 |
| 2023 | 50km | 36 | Matt Pacheco · 03:37:08 | Sarah Nelson · 04:53:07 |
| 2022 | 50km | 22 | Albert Mendes · 04:08:15 | Theresa McBride · 04:16:01 |
| 2019 | 50km | 41 | Eric Ciocca · 03:55:18 | Martha Berrouard · 05:01:18 |
| 2018 | 50km | 32 | Brendan Chambers · 04:16:31 | Christin Doneski · 04:11:40 |
| 2017 | 50km | 21 | Eric Ciocca · 04:04:22 | Heather Brochu · 04:48:13 |
| 2014 | 50km | 31 | Peter Zelken · 04:09:03 | Sarah Bousquet · 04:46:48 |
| 2013 | 50km | 39 | Jason Bigonia · 03:28:10 | Martha Berrouard · 04:21:02 |
| 2012 | 50km | 54 | Dave Thoman · 03:58:10 | Martha Berrouard · 04:20:30 |
The field grew 25% between 2024 (32) and 2025 (40). 35% of the 2025 field were women.
DUV results for the 2025 edition (50km) — 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 road terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of road.
- Trail Running Shoes 50 km of road — cushioning that is still there in the last quarter.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 50 km, without the bounce.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Similar races
Other 50K road ultras, closest in distance first.