Miwok 100K official race logo - running event in Stinson Beach, California
DATE:
TIME:
LOCATION:
Stinson Beach, California
DISTANCES:
2 Events: 100K, 100K

About Miwok 100K

The Miwok 100K is one of the most beautiful and iconic trail ultramarathons in the world. The course is hilly (11,800 feet of gain) but runnable, with spectacular views of San Francisco and the Golden Gate Bridge, Sausalito, Mount Tamalpais, the ancient redwoods and the Point Reyes National Seashore.

The course features single-track trails and dirt roads with about a mile of paved road. The race is competitive at the front, and a rewarding challenge for all. Less than an hour from San Francisco, the Start/Finish is in the town of beautiful Stinson Beach, nestled against Mount Tamalpais, with its excellent cafés, a small market, lodging, and more.

Course marking is excellent, and you’ll be supported by some of the best volunteers on a race course anywhere. We hire professional medical for all aid stations for those occasional skinned knees and such. Our 2026 runners will receive a custom Miwok 100K finisher’s medal and a Miwok 100K mug.

100K Team Relay is also back for 2026

We have 3 options for you to participate in our event:

1. Miwok 100K on May 2, 2026 (When the race is full, you will be placed on a Waitlist. Your card will not be charged until you are offered a spot, and accept it. Registered runners who drop prior to February 1 will receive a $110 (40%) refund.) 

2. Miwok 100K on May 2, 2025, PLUS an 18 week training plan from coach Race Director Magda Boulet

3. Miwok 100K Team Relay on May 3, 2025 (must have 4 participants per relay)

Please make sure you sign up for the correct event!

 

Miwok 100KThe Miwok 100K is one of the most beautiful and iconic trail ultramarathons in the world. The course is hilly (11,800 feet of gain) but runnable, with spectacular views of San Francisco and the Golden Gate Bridge, Sausalito, Mount Tamalpais, the ancient redwoods and the Point Reyes National Seashore. The course features single-track trails and dirt roads with about a mile of paved road. The race is competitive at the front, and a rewarding challenge for all. Less than an hour from San Francisco, the Start/Finish is in the town of beautiful Stinson Beach, nestled against Mount Tamalpais, with its excellent cafés, a small market, lodging, and more. Course marking is excellent, and you’ll be supported by some of the best volunteers on a race course anywhere. We hire professional medical for all aid stations for those occasional skinned knees and such. Our 2026 runners will receive a custom Miwok 100K finisher’s medal and a Miwok 100K mug. 100K Team Relay is also back for 2026 We have 3 options for you to participate in our event: 1. Miwok 100K on May 2, 2026 (When the race is full, you will be placed on a Waitlist. Your card will not be charged until you are offered a spot, and accept it. Registered runners who drop prior to February 1 will receive a $110 (40%) refund.)  2. Miwok 100K on May 2, 2025, PLUS an 18 week training plan from coach Race Director Magda Boulet 3. Miwok 100K Team Relay on May 3, 2025 (must have 4 participants per relay) Please make sure you sign up for the correct event!  
Stinson Beach, CA

Race Events & Distances

Choose from 3 race distances available for Miwok 100K in Stinson Beach, CA. Registration includes timing, finisher medals, and post-race refreshments.

Miwok 100k PLUS 16 week Training Plan

100K
Distance
100K
Start Time
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Stinson Beach, CA
Stinson BeachCA
Miwok 100K Organizers

Frequently Asked Questions about Miwok 100k PLUS 16 week Training Plan

How long is the Miwok 100k PLUS 16 week Training Plan?
The Miwok 100k PLUS 16 week Training Plan covers 100K.
What time does the Miwok 100k PLUS 16 week Training Plan start?
The Miwok 100k PLUS 16 week Training Plan starts at 5:00:00 AM.
Where is the Miwok 100k PLUS 16 week Training Plan located?
The Miwok 100k PLUS 16 week Training Plan takes place in Stinson Beach, CA.

Miwok 100K Team Relay - Teams of 4 runners

Start Time
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Stinson Beach, CA
Stinson BeachCA
Miwok 100K Organizers

Frequently Asked Questions about Miwok 100K Team Relay - Teams of 4 runners

How long is the Miwok 100K Team Relay - Teams of 4 runners?
The Miwok 100K Team Relay - Teams of 4 runners covers Distance varies.
What time does the Miwok 100K Team Relay - Teams of 4 runners start?
The Miwok 100K Team Relay - Teams of 4 runners starts at 5:00:00 AM.
Where is the Miwok 100K Team Relay - Teams of 4 runners located?
The Miwok 100K Team Relay - Teams of 4 runners takes place in Stinson Beach, CA.

Miwok 100K

100K
Distance
100K
Start Time
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Stinson Beach, CA
Stinson BeachCA
Miwok 100K Organizers

Frequently Asked Questions about Miwok 100K

How long is the Miwok 100K?
The Miwok 100K covers 100K.
What time does the Miwok 100K start?
The Miwok 100K starts at 5:00:00 AM.
Where is the Miwok 100K located?
The Miwok 100K takes place in Stinson Beach, CA.

Registration Information

Registration is typically available online until race day (subject to capacity). Early registration is recommended for guaranteed entry and potential early bird pricing. Check with race organizers for specific event details and included amenities.

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