Cascade Locks, OR, United States · Saturday, November 7, 2026

Fixed Distance 50K

Thunder River

38 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.

45.6698° N, 121.8906° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 8.5 hours 10:12 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 Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it.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 77% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →
Field size ~66 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 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, November

Daytime high 7°C
Night low 1°C
Rainfall Wet — expect rain
Daylight 9 h 53 m of light

Regional 2001-2020 average for November — NASA POWER, grid elevation 612 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2025 50km 66 Peter Buckley · 03:48:44 Ashley Figel · 04:53:54

30% of the 2025 field were women.

DUV results for the 2025 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.
All gear guides →

Overview

Thunder River is a 50k trail race, organised by Daybreak Racing, that takes place in Cascade Locks, OR, each November. The single edition so far in 2025 saw 66 finishers.

With a time limit of 8.5 hours for the 50k distance, this race has a tighter cutoff than 76% of 50k races, demanding a pace faster than 10.2 minutes per kilometer. This leaves less margin for error or extended breaks compared to most races at this distance. The field size of 66 finishers in its inaugural year was larger than 67% of 50k races.

Similar races

Other 50K trail ultras, closest in distance first.