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

Fixed Distance 50K

Siuslaw Dunes 50km Trail Race

177 days away
50 km Distance
800 m Climbing
3.7 Grit · Challenging
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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 72% of 50K races. Measured against 982 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.

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 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.

La Sportiva

Prodigio Pro

$225 ★★★★★ 4.6

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

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

Similar races

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