The Miwok 100K, presented by The North Face, returns to Stinson Beach on Saturday, 2 May, with a 5 a.m. start sending the field of just under 400 runners up the Dipsea Trail towards Cardiac and into the long opening loop through the Marin Headlands. First run in 1996, Miwok is one of the oldest 100 km races in North America and one of the few classics on the West Coast that has resisted commercial expansion: it remains a single-distance event, capped tightly, with a course that has changed only in small pieces over its three decades.
The 2026 edition keeps the route that has been used since 2018 — out from Stinson Beach up the Dipsea, across the southern flank of Mount Tamalpais to Muir Beach, then a long loop around the Marin Headlands before returning north along the Pacific Coast bluffs to a turn at the Pantoll aid station and a coastal descent back into Stinson. Runners cross around 11,500 feet of climbing on a mix of single-track and fire road. The cut-off sits at 15 hours and 30 minutes and confers a 2027 Western States Endurance Run qualifier, which is the principal reason the entry list fills the moment registration opens each November.
The men's race is led by 2025 winner Tyler Green, returning to defend, with last year's third-place finisher Drew Holmen on the start list after a strong run at Canyons last week. Britain's Charlie Harpur, fresh from a Madeira finish, makes his California 100 km debut. The depth in the men's chase pack is unusually narrow this year — a handful of late entries withdrew with niggles or with Western States 2026 commitments — but Green's form and Holmen's recent fitness make the front pairing the most interesting story to track at the half-way aid station at Bolinas Ridge.
The women's race is the wider open field. Defending champion Beth Pascall has chosen to skip Miwok this year to focus on her UTMB build. In her absence, the entry list is led by Audrey Tanguy, racing her first North American 100 km in three years, alongside Cat Bradley, Marianne Hogan, and Anna Mae Flynn, all of whom have run inside the previous course record at one point in their careers. Hogan, in particular, arrives with the most recent strong result, having run a controlled tune-up at Lake Sonoma in March, and is the consensus pre-race favourite among the bookmakers tracking the West Coast circuit.
The forecast for Saturday is unusually cool: a marine layer is expected to sit on the Headlands until late morning with highs in the upper 50s on the exposed sections of the route. Those conditions historically favour the front of the women's race, where Hogan and Tanguy will likely race inside each other's view for the first 50 km before the climb out of the Pantoll aid station opens the field. The first finishers are expected back at the Stinson Beach Community Center finish line shortly after 1 p.m. Pacific Time, with most of the field in by mid-evening; live tracking opens at the Aravaipa-supported timing system at 4:45 a.m. on race morning.