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Marin Ultra Challenge

Name: Marin Ultra Challenge
Start: 2026-03-14
End: 2026-03-14
Location: Sausalito, California

location_on

Sausalito, California, United States

calendar_today 14 Mar, 2026

directions_run Running

language Official Website

sell $145.00 – $220.00

About the Event

Take on a premier tour of the Bay Area's most iconic coastal and redwood trails at the Marin Ultra Challenge, March 14, 2026. This 11th edition, presented by Inside Trail Racing, offers a grueling 50-mile journey with 11,000 feet of climbing and a demanding 50k, both meticulously designed to showcase the stunning diversity of Marin County. The point-to-point course from Rodeo Beach traverses the Marin Headlands, Muir Woods, and the slopes of Mount Tamalpais, delivering a relentless mix of exposed coastal ridges, technical singletrack, and serene redwood canopies.

With a significant cash purse for the 50-mile podium finishers and the option to participate in the '50/50 Challenge' with Monterey Ultra, the event attracts elite competition while remaining accessible to dedicated trail runners. Professional timing with live tracking, well-stocked aid stations, and a 14.5-hour cutoff ensure a top-tier experience. Secure your spot in this capped field for a classic early-season ultramarathon that embodies the very soul of Northern California trail running.

Races Offered

50 Miler

Mar 14, 2026

straighten

Distance — 80.5K

terrain

Type — Running

timer

06:00

sell

$220.00

50K

Mar 14, 2026

straighten

Distance — 50K

terrain

Type — Running

timer

07:00

sell

$145.00

Weather Overview

These values represent the 3-year monthly averages for March in Sausalito.

Temp (°C)

Feels Like (°C)

thermostat 7.9° / 15.1°

wb_sunny 4.6° / 12.3°

Wind (km/h)

Humidity (%)

air 12.0 /

water_drop 79.4%