Ultra Running Hub San Francisco, CA, United States · Sunday, December 6, 2026
Hunter S. Thompson Fear & Loathing 50 Miles
Calculated from 80 km alone — the organiser has not published an elevation profile. Read 4.0 as a floor, not a verdict.
What the course asks
DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, December
Regional 2001-2020 average for December — NASA POWER, grid elevation 87 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50mi | 26 | Eduardo Morales · 06:40:00 | Rebecca Heymann · 07:30:58 |
| 2024 | 50mi | 16 | Eduardo Morales · 07:02:36 | Stefanie Bernosky · 09:25:00 |
| 2023 | 50mi | 18 | Eduardo Morales · 07:07:00 | Rachel Entrekin · 07:11:00 |
| 2022 | 50mi | 17 | Nicholas Su · 07:12:00 | Rachel Entrekin · 07:54:00 |
| 2021 | 50mi | 12 | Yasushi Saito · 07:57:00 | Rachel Entrekin · 07:56:00 |
| 2020 | 50mi | 8 | Gang Qin · 07:47:00 | Audrey Kung · 09:58:00 |
| 2019 | 50mi | 10 | Kyle Vogt · 08:16:00 | — |
| 2018 | 50mi | 11 | Christopher Barry · 07:55:15 | Rachel Entrekin · 07:59:15 |
| 2017 | 50mi | 19 | Ben Eysenbach · 06:52:59 | Rachel Entrekin · 08:59:20 |
| 2016 | 50mi | 9 | Michael Schooler · 08:19:00 | — |
The field grew 63% between 2024 (16) and 2025 (26). 35% of the 2025 field were women.
DUV results for the 2025 edition (50mi) — 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 80 km of trail.
- Trail Running Shoes 80 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 80 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 80 km, without the bounce.
- Headlamps 80 km almost certainly means running into the night.
- GPS Watches Battery life first — a 80 km day outlasts most full-GPS modes.
Overview
With an 11-hour time limit, this December road ultra in San Francisco, CA demands a minimum pace of 8.3 minutes per kilometer. That cut-off is tighter than 94% of 50mi peers and more generous than only 6%, leaving almost no buffer for walking breaks or street-corner delays.
The urban route begins at Twin Peaks and navigates city streets along the 49 Mile Scenic Drive. It maintains an intimate pack—smaller than 70% of 50mi fields and bigger than 29%—having seen 26 runners cross the finish line in 2025 across its 10 editions since 2016.
Similar races
Other 50 mi trail ultras, closest in distance first.