Ultra Running Hub Folsom, CA, United States · Saturday, January 23, 2027
Folsom Lake Sweetwater Trail Run
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 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, January
Regional 2001-2020 average for January — NASA POWER, grid elevation 128 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 50km | 29 | Adam Wolf · 04:37:22 | Cierra Rullhausen · 06:27:01 |
| 2025 | 50km | 17 | John Heaps · 05:56:41 | Emma Grupe · 06:14:34 |
| 2024 | 50km | 19 | Jeffrey Klahn · 05:12:35 | N. N. · 04:44:28 |
| 2023 | 50km | 43 | Aaron Summerhays · 04:50:53 | Caroline Barichievich · 05:38:05 |
| 2022 | 50km | 29 | Grant Santos · 05:28:33 | Nicolette del Sarto · 05:30:03 |
| 2021 | 50km | 8 | Ethan Hardacre · 04:59:04 | Madeline Hardacre · 07:08:13 |
| 2020 | 50km | 7 | Daniel Myers · 04:53:51 | Ankita Bansal · 07:27:40 |
| 2019 | 50km | 12 | Sam Stubbert · 06:03:03 | Sandra Campos · 06:03:03 |
| 2018 | 50km | 15 | Daigo Echizenya · 05:10:42 | Nicolette del Sarto · 05:36:26 |
| 2017 | 50km | 16 | Russell Metteer · 05:23:45 | Nicolette del Sarto · 05:11:20 |
The field grew 71% between 2025 (17) and 2026 (29). 34% of the 2026 field were women.
DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail.
- Trail Running Shoes 50 km of trail — 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.
Overview
The Folsom Lake Sweetwater Trail Run, a 50k trail race organised by Troy's California Trail Runs, will take place on January 23, 2027, in Folsom, CA. This event has a history of 10 editions, with the first held in 2017 and the most recent in 2026, which saw 29 finishers.
With a time limit of 9 hours, the cut-off for this 50k race is tighter than 64% of its 50k peers, allowing for a pace of 10.8 minutes per kilometer. This may require runners to maintain a consistent effort throughout the course.
The field size for this race is smaller than 57% of 50k races, but bigger than 42% of 50k fields, among a peer group of 2838 events.
Similar races
Other 50K trail ultras, closest in distance first.