Florence, OR, United States · Saturday, February 27, 2027

Fixed Distance 50K

Siuslaw Dunes 50km Trail Race

112 days away

50 km Distance

800 m Climbing

3.7 Grit · Challenging

43.9826° N, 124.0998° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 16 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 9 hours 10:48 min/km average. Generous. Walkable throughout for most of the field. Tighter than 70% of 50K races. Measured against 1087 races of the same distance. Cut-off calculator →

Field size ~72 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 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, February

Daytime high 10°C

Night low 7°C

Rainfall Showers likely

Daylight 11 h 02 m of light

Regional 2001-2020 average for February — NASA POWER, grid elevation 53 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 50 km of trail with 800 m of ascent.

Trail Running Shoes50 km of trail — cushioning that is still there in the last quarter.
Race Nutrition50 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 50 km, without the bounce.
GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.

New Balance

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

Spring Energy

Awesome Sauce

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

$4 ★★★★★ 4.6

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Suunto

Vertical

Titanium GPS watch with solar charging, offline maps, and 140-hour GPS battery.

$630 ★★★★★ 4.5

All gear guides →

Course Notes

The race’s surface terrain types alternate continuously throughout the race, presenting a unique challenge that will demand a runner’s attention and fitness. For example, over a given 5 mile stretch, a runner could see a mile of beach, then a mile of

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