Holcomb Valley 33 Mile

Race completed

53 km Distance

not publishedn/a Climbing

2.7 est Grit · Entry level

Calculated from 53 km alone — the organiser has not published an elevation profile. Read 2.7 as a floor, not a verdict.

34.2439° N, 116.9114° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 10 hours 11:19 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 Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. About average for a 50K. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~199 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 edition (33mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, June

Daytime high 32°C

Night low 14°C

Rainfall Dry — rain unlikely

Daylight 14 h 25 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 983 m. Not a forecast.

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 53 km of trail.

Trail Running Shoes53 km of trail — cushioning that is still there in the last quarter.
Race Nutrition53 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 53 km, without the bounce.
GPS WatchesBattery life first — a 53 km day outlasts most full-GPS modes.

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Skratch Labs