Flagstaff, AZ, United States · Saturday, June 20, 2026

Fixed Distance 50K

Flagstaff Extreme Big Pine 54K Trail Run

Race completed

52 km Distance

2 m Climbing

2.6 Grit · Entry level

35.1981° N, 111.6513° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 0 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 10 hours 11:32 min/km average. Generous. Walkable throughout for most of the field. About average for a 50K. Measured against 1087 races of the same distance. Cut-off calculator →

Field size ~117 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 edition (52km) — 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 31°C

Night low 12°C

Rainfall Dry — rain unlikely

Daylight 14 h 32 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 1836 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat 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 52 km of trail with 2 m of ascent.

Trail Running Shoes52 km of trail — cushioning that is still there in the last quarter.
Race Nutrition52 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 52 km, without the bounce.
GPS WatchesBattery life first — a 52 km day outlasts most full-GPS modes.

New Balance

Fuel Cell Super Comp Trail

★★★★★ 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

Maurten

Gel 100

Hydrogel technology for 25g carbs per gel with minimal GI distress.

$3.5 ★★★★★ 4.7

Salomon

ADV Skin 12

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

$180 ★★★★★ 4.8

COROS

APEX 2 Pro

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

$500 ★★★★★ 4.7

All gear guides →

Course Notes

Fort Tuthill County Park. The course is designed as a multi-loop race with the 54 Km doing 4 full circuits of trails. The trail ranges from narrow single track to wide well-maintained forest paths.

Similar races

Other 50K trail ultras, closest in distance first.