Red Feather Lakes, CO, United States · Saturday, September 26, 2026

Fixed Distance 50K

Red Feather Trail Jamboree - 50k

Race completed

50 km Distance

1,281 m Climbing

4.4 Grit · Challenging

40.8077° N, 105.5756° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 26 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 11 hours 13:12 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 62% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~135 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, September

Daytime high 20°C

Night low 5°C

Rainfall Mostly dry

Daylight 12 h 02 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 2414 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50km	135	Clint Anders · 04:04:50	Lillie Romeiser Rodgers · 04:50:21
2024	50km	129	Peter Burke · 04:15:49	Riley Brady · 04:39:48
2023	50km	102	Rob Raguet-Schofield · 04:46:05	Maggie Shafer · 04:56:35
2022	50km	99	Silas Thompson · 04:21:22	Virginia Thomas · 05:46:49

The field grew 5% between 2024 (129) and 2025 (135). 47% 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

⛰️ 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 50 km of trail with 1,281 m of ascent.

Trail Running Shoes 26 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,281 m of ascent to walk up.
GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.

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

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 4.5

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Black Diamond

Distance FLZ

Lightweight folding trekking poles with FlickLock Z adjustment. 340g per pole.

$170 ★★★★★ 4.7

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Overview

The Red Feather Trail Jamboree 50k, a trail race put on by Gnar Runners, offers 1281 meters of elevation gain over 50 kilometers, averaging 25.6 meters of climb per kilometer. This makes it a hillier race than many 50k events. The course features 70 to 80 percent singletrack and 20 to 30 percent dirt road.

With 135 finishers at its most recent edition in 2025, this 50k race has a larger field than 85 percent of its 2663 peers. Runners have an 11-hour time limit, which translates to a 13.2 minutes per kilometer cutoff pace. This cutoff is tighter than 34 percent of 1022 comparable 50k races.

Similar races

Other 50K trail ultras, closest in distance first.