Miwok 100K
Miwok 100K brings runners to Stinson Beach, United States for 100K trail ultramarathon. The event is a strong choice for runners who want a memorable course, a well-supported race weekend and a clear sense of place. The next listed date is May 1, 2027. See the official race website for registration, rules, packet pickup and final schedule updates.
Course Highlights
A demanding 100-kilometer journey through Marin Headlands and Mount Tamalpais trails, with ocean overlooks, ridgelines and long runnable sections. The route rewards athletes who study its terrain and conditions in advance. Weather, surface changes, elevation and crowd flow can all affect pacing, so runners should build a race-specific plan and practice the nutrition they expect to use. Official course maps and aid-station details should take precedence over any early description.
Race Details
The principal start is expected around 05:00 local time, with the event operating in the America/Los_Angeles time zone. Distances include 100K trail ultramarathon. Check the organizer’s final athlete guide for wave assignments, cutoffs, aid stations, bag drop, transport and road closures. The listed venue is Miwok 100K | Stinson Beach Start. Runners traveling internationally should confirm passport, insurance, local transit and entry requirements before booking.
Race week is easier when logistics are treated as part of training. Arrive with enough time for bib pickup, walk through the start-area plan and identify a breakfast that matches your normal routine. Book lodging with a practical route to the venue, keep a short shakeout run on the schedule and pack familiar shoes, layers and fueling. If the course is exposed, hot, cold, hilly or high-altitude, use the opening miles to settle into effort rather than chasing a target pace. Spectators should review official viewing guidance because closures and restricted access can change meeting points.
Why Runners Love It
The 400-runner field, predawn start and rugged coastal terrain create an intimate but highly respected ultramarathon experience. Miwok 100K has been a fixture of California trail racing for decades and is known for its carefully stewarded course and community support. The event also works well for a group trip: shorter distances, relay options or community activities can give family members choices while the main race provides a meaningful training goal. Look for charity entries, local clubs, volunteer opportunities and race-week cultural events through the organizer. After the finish, leave time to explore Stinson Beach responsibly and support local businesses.
Plan Your Entry
Registration windows, lotteries, pricing and field limits can change quickly. Review the official website before making nonrefundable plans, save the participant guide once it is posted and confirm medical, refund and transfer policies. Build your training calendar backward from race day, include an acclimation plan when relevant and check all travel logistics early. Visit the official Miwok 100K website for the latest announcements and entry information.