Course
Starts and finishes at Rodeo Beach, Sausalito, crossing the Marin Headlands, the Stinson-facing flank of Mt Tamalpais and Muir Woods. Terrain ranges from exposed fire roads with coastal and inland views to tight, technical single-track under redwood canopy. Multiple aid stations carry water, gels, snacks, salt and fresh fruit; the race is cupless, so runners carry their own bottle or cup.
Key dates
- ·RegistrationNot open yet
- ★Race daySat 13 Mar 2027
About
The Marin Ultra Challenge is a long-distance trail race across some of Marin County's best trails, now past its 12th running. Courses are demanding and scenic, with the 50 Mile route including about 11,000 feet of elevation gain.
Save Marin Ultra Challenge to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.