Miwok 100K
- Date Sat 2nd May 2026
- Time 5:00AM PDT
- Location Stinson Beach, California
- Price $310.00 - $460.00
- Races 3 races
- Distances Ultra
Event summary
Get ready for an unforgettable adventure at the Miwok 100K, taking place on Saturday, May 2, 2026, in the stunning Stinson Beach, Marin! This iconic trail ultramarathon features a challenging yet runnable course that boasts a total elevation gain of 11,800 feet, offering breathtaking views of San Francisco, the Golden Gate Bridge, and the majestic Mount Tamalpais. Runners will traverse picturesque single-track trails, dirt roads, and a short stretch of paved road, making this event a true feast for the eyes and the spirit.
Whether you're a competitive runner or a trail enthusiast looking for a rewarding challenge, the Miwok 100K caters to all. Participants will be well-supported by dedicated volunteers and professional medical staff at aid stations, ensuring a safe and enjoyable experience. Plus, every finisher will receive a custom Miwok 100K medal and a commemorative mug. New for 2026, the popular 100K Team Relay is back, allowing teams of four to share in the excitement. Don’t miss this chance to run amidst the beauty of nature and take part in one of the most celebrated ultramarathons in the world!
Whether you're a competitive runner or a trail enthusiast looking for a rewarding challenge, the Miwok 100K caters to all. Participants will be well-supported by dedicated volunteers and professional medical staff at aid stations, ensuring a safe and enjoyable experience. Plus, every finisher will receive a custom Miwok 100K medal and a commemorative mug. New for 2026, the popular 100K Team Relay is back, allowing teams of four to share in the excitement. Don’t miss this chance to run amidst the beauty of nature and take part in one of the most celebrated ultramarathons in the world!
Organiser's Description
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 caf'es, a small market, lodging, and more.
Course marking is excellent, and youll 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 finishers 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!
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 caf'es, a small market, lodging, and more.
Course marking is excellent, and youll 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 finishers 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!
Races
-
Miwok 100K
Incl. Miwok 100K Mug
Sat 2nd May 2026 (5:00AM PDT)
$310.00
OPENS 09 NOVThe 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 caf'es, a small market, lodging, and more. Course marking is excellent, and youll 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 finishers medal and a custom Miwok 100k mug. -
Miwok 100k PLUS 16 Week Training Plan
Incl. Miwok 100K Mug
Sat 2nd May 2026 (5:00AM PDT)
$460.00
OPENS 09 NOVWe are excited to offer a 16-Week Training Plan for the 2026 Miwok 100K race, created by 2008 US Olympian & 2015 Western States 100 Champion, Magda Boulet. Our goal is to offer you tips and tools related to training and racing, and the Miwok 100K course. The Training Plan begins Monday January 12, 2026. Participants will receive an email from Coach Magda with a detailed training plan every 4 weeks, with options for novice and intermediate ultrarunners. Experienced ultrarunners can register for the Training Plan, too, for some fun workout ideas. Our 2026 runners will also receive a custom Miwok 100K finishers medal and a custom Miwok 100k mug. And 100% of the revenue from the training plan purchase will support our Community Partners including the wonderful local non-profit Running For A Better Oakland. -
Miwok 100K Team Relay - Teams of 4 Runners
Incl. Miwok 100K Mug
Sat 2nd May 2026 (5:00AM PDT)
$400.00
OPENS 09 NOVA fun option to participate in the Miwok 100K by forming a 4-person Relay team who covers the same 100K course! This is a great option for those who dont want to or can't race the entire distance and are looking for a fun way to participate in all the action. Same course, same day, same time, but in fun size segments of approximately 26, 9.5, 14 and 13 miles. The first leg of the relay begins at the start line, heading south all the way to Bridge View and back to Tennessee Valley for the second time. Its the longest leg of the relay at 26 miles long. Leg #2 takes off from Tennessee Valley and heads North up Mt. Tam to Cardiac. Its the shortest leg at only 9.5 miles, but the climbing more than makes up for the lack of distance. Leg #3 takes over at Cardiac and traverses the beautiful Coastal Trail and ends at the Randall aid station for a cool 14 miles. The anchor leg takes it home from Randall back to Stinson Beach and is 13 miles long. All 2026 team relay runners will receive a custom Miwok 100K finishers medal and a custom Miwok 100k mug.
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32 Belvedere Ave, Stinson Beach, 94970, CA, United States
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