Castro Valley, CA, United States · Saturday, September 26, 2026

Fixed Distance 50 mi

Dick Collins Firetrails 50 Mile

10 days to go

80 km Distance

2,300 m Climbing

7.5 Grit · Hardcore

37.6941° N, 122.0863° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 29 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Field size ~90 Mid-sized. Company early, well spread out by halfway.

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, September

Daytime high 28°C

Night low 11°C

Rainfall Dry — rain unlikely

Daylight 12 h 03 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 233 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 80 km of trail with 2,300 m of ascent.

Trail Running Shoes29 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition80 km of self-supported fuelling between aid stations.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles2,300 m of ascent to walk up.
Headlamps80 km almost certainly means running into the night.

Salomon