2026 Miwok 100K

The Miwok 100K, presented by The North Face, will take place on Saturday, May 2, 2026, in Stinson Beach, California, within the Marin Headlands. The event is set against a backdrop of redwood forests, coastal cliffs, and rugged ridgelines, offering runners a challenging and scenic trail ultramarathon. The course spans approximately 62 miles with over 11,000 feet of elevation gain, traversing single-track trails and dirt roads. The race begins at 5:00 AM PDT, with the course closing at 8:30 PM PDT. Weather in Stinson Beach during early May is typically cool and variable, with morning temperatures ranging from 45°F to 55°F and the potential for fog, wind, and occasional rain. Runners should prepare for fast-changing conditions and bring appropriate gear.

What is the event name and date?

The event is the Miwok 100K, scheduled for Saturday, May 2, 2026.

What is the location of the event?

The event is held in Stinson Beach, California, specifically within the Marin Headlands, just north of San Francisco.

What is the distance of the race?

• →100K (approximately 62 miles)

What is the elevation gain on the course?

The course features over 11,000 feet of elevation gain.

What type of terrain will runners encounter?

Runners will navigate predominantly single-track trails and dirt roads, with approximately one mile of paved road included in the route.

What scenery and environment can participants expect?

The course features diverse landscapes, including redwood forests, exposed ridge lines, and crashing coastal cliffs.

What is the difficulty level of the event?

The event is competitive at the front but designed as a rewarding challenge for experienced ultrarunners. Runners must be prepared for steep climbs, exposed ridges, and fast-changing weather conditions.

How is the course marked?

The course is well-marked with professional medical staff present at all aid stations.

What is the time limit for the race?

The time limit is 15 hours and 30 minutes, with the course closing at 8:30 PM PDT.

What are the cutoff times?

Tight intermediate cutoffs are enforced to ensure safety and meet permit requirements.

What is the age requirement for participants?

The event is open to runners aged 18 to 80.

What is the maximum number of runners allowed?

The event is capped at 400 runners.

What are the participant expectations?

Runners should have experience with trail ultras, be capable of self-supported efforts, and adhere to Leave No Trace principles.

What is the current status of registration?

The individual race entry is currently sold out, but a waitlist is available. No payment is charged until a spot is offered and accepted.

When does registration open?

Registration opens on November 9, 2025, at 6:00 AM PST via RunSignUp.

What is the refund policy?

Registered runners who drop prior to February 1, 2026, will receive a 40% refund, equivalent to $124.

What entry packages are available?

• →Race + Training Plan: $460 (includes race entry and a 16-week training plan from Magda Boulet)
• →Team Relay: $400 per team (teams of 4 runners)
• →Training Plan Only: $150 (16-week plan without race entry)

When is the registration deadline?

The registration deadline is February 28, 2026, at 8:00 PM PST for the Team Relay, and May 2, 2026, at 5:00 AM PDT for the Training Plan Only.

What amenities and facilities are available?

The event features fully supported aid stations with professional medical care, and it is a cup-less, low-waste event focused on sustainability.

What sustainability initiatives are part of the event?

The event partners with 1% for the Planet, Leave No Trace, and GU Energy Labs to promote sustainability.

What community initiatives are included?

The event features the "Bridge to Trails Initiative," aimed at expanding access and representation for Black, Indigenous, and People of Color in trail running.

What is included in the finisher's swag?

Finishers will receive a custom Miwok 100K finisher's medal and a Miwok 100K sweatshirt.

What is the start and finish location?

The start and finish are located at 32 Belvedere Ave, Stinson Beach, CA 94970. The town offers cafés, a market, and lodging near Mount Tamalpais.