Rodeo Beach, Sausalito, CA, United States · Saturday, March 13, 2027

Fixed Distance 50 mi

Marin Ultra Challenge 50 Mile Race

191 days away

80 km Distance

3,300 m Climbing

9.0 Grit · Elite / extreme

What the course asks

Climbing rate 41 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Field size ~175 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, March

Daylight 11 h 49 m of light

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a mountain course. Poles are highly recommended for the sustained climbs.

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 80 km of trail with 3,300 m of ascent.

Trail Running Shoes 41 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 80 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 3,300 m of ascent to walk up.
Headlamps 80 km almost certainly means running into the night.