Ultra Running Hub San Jose, CA, United States · Thursday, December 31, 2026
New Years One Day 100 Mi Run
Calculated from 161 km alone — the organiser has not published an elevation profile. Read 8.1 as a floor, not a verdict.
What the course asks
DUV results for the 2025 edition (100mi) — 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 233 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 100mi | 8 | Willow Dolde · 18:19:09 | — |
| 2024 | 100mi | 10 | Chase Jacques-Maynes · 13:28:50 | Sharlet Gilbert · 25:12:19 |
| 2023 | 100mi | 2 | Kevin Moore · 16:54:41 | — |
| 2022 | 24h | 3 | Vincent Ma · 0.000 km | Haa Cheng Thai · 0.000 km |
The field shrank 20% between 2024 (10) and 2025 (8). 0% of the 2025 field were women.
DUV results for the 2025 edition (100mi) — 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 161 km of trail.
- Trail Running Shoes 161 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition Past 161 km the palate quits before the legs do — carry more than one flavour.
- Hydration Vests Flask capacity for 161 km, without the bounce.
- Headlamps 161 km almost certainly means running into the night.
- Accessories Chafe and blisters end more 161 km races than fitness does.
Similar races
Other 100 mi trail ultras, closest in distance first.