Oakland, CA, United States · Saturday, March 20, 2027

Fixed Distance 50K

Redwood (Spring) 50 km Trail Run

171 days away

50 km Distance

not publishedn/a Climbing

2.5 est Grit · Entry level

Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.

37.8044° N, 122.2708° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 9 hours 10:48 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 71% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~43 Small. Long stretches with nobody in sight.

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, March

Daytime high 15°C

Night low 7°C

Rainfall Mostly dry

Daylight 12 h 06 m of light

Regional 2001-2020 average for March — NASA POWER, grid elevation 87 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	50km	43	Michael Palo · 04:31:31	Beverley Anderson-Abbs · 04:56:20
2025	50km	27	Michael Palo · 04:27:25	Abby Novak · 04:49:33
2024	50km	49	Clifford Lentz · 04:29:25	Anonymous Participant · 04:35:42
2023	50km	31	Patrick Rabuzzi · 03:49:36	Heather Liu · 05:10:24
2022	50km	30	Eric Lee · 04:39:33	Andrea Isaac · 05:19:42
2019	50km	44	Clement Guillaume · 04:25:22	Beverley Anderson-Abbs · 04:29:39
2018	50km	34	John Schmid · 04:23:15	Katy Pieri-McCaffrey · 05:22:48
2017	50km	23	Trey Dominick · 05:08:49	Elizabeth Riffel-Altman · 05:52:59
2016	50km	37	Clark Messman · 03:59:04	Lisa Mazzocco · 05:08:01
2016	50km	38	Jason Friedman · 04:22:31	Luisa Cheung · 06:30:27

The field grew 59% between 2025 (27) and 2026 (43). 35% 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.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

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.

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 4.5

Spring Energy