Ultra Running Hub Castro Valley, CA, United States · Saturday, February 20, 2027
Chabot 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, February
Regional 2001-2020 average for February — NASA POWER, grid elevation 233 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 50km | 40 | Benjamin Moore · 04:05:19 | Sylvie Abel · 03:56:26 |
| 2025 | 50km | 34 | Matt Ward · 04:30:36 | Zoe Ray · 05:25:24 |
| 2024 | 50km | 32 | Jeff Landauer · 04:41:17 | Jodie-May Gauld · 04:43:45 |
| 2020 | 50km | 53 | Matthew Deyo · 03:44:00 | Magdalena Lewy Boulet · 04:13:06 |
| 2019 | 50km | 30 | Vu Ricky Tran · 04:37:09 | Miquela Ingalls · 05:25:49 |
| 2018 | 50km | 40 | Drew Macomber · 03:32:51 | Wendy Stalnaker · 04:40:11 |
| 2017 | 50km | 41 | Lance Doherty · 04:18:26 | Amy Phillips · 04:43:16 |
| 2016 | 50km | 48 | Christopher Vizcaino · 03:42:30 | Ayako Murai · 05:20:57 |
| 2015 | 50km | 80 | Christopher Vizcaino · 04:00:31 | Kristyn Kadala · 04:23:42 |
| 2014 | 50km | 64 | Bob Shebest · 03:44:17 | Maria Monks · 04:35:31 |
The field grew 18% between 2025 (34) and 2026 (40). 33% 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 Chabot Trail Run in Castro Valley, CA features a demanding time limit that puts pressure on runners from the start. With an 8-hour cutoff requiring a minimum pace of 9.6 minutes per kilometer, the standard is tighter than 84% of 50k cut-offs and more generous than only 16%, leaving little margin for extended aid station stops or a severe late-race fade.
Organised by Inside Trail Racing, the course winds through Lake Chabot Regional Park across eucalyptus groves, open meadows, lakeside stretches, and elevated ridgelines. With a turnout bigger than 52% of 50k fields and smaller than 48%, entrants navigate the varied terrain in a mid-sized pack rather than an isolated back-of-the-pack setting.
Similar races
Other 50K trail ultras, closest in distance first.