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Volunteer, Driving Directions

Volunteer!

The Miwok 100K could not take place without many wonderful volunteers who mark the course, work at the aid stations and the start/finish, and help remove the ribbons and clean up afterwards.

If you’d like to be indispensable (and have a lot of fun without running all that way), email Volunteer Coordinator/Co-RD Magda Boulet, at miwok100k@gmail.com with the specific spot you want (see below), or tell us when you’re available and we’ll place you at the perfect location.

Volunteers who work at least 8 hours at the 2025 race will receive priority registration for the 2026 Miwok 100K.

2025 Volunteer Opportunities:

  • Friday, 5/2 – Mark a section of the course.
  • Saturday, 5/3– Staff an aid station:
    •  Start: 3:30 a.m. – 8:00 a.m.
    •  Finish: 12 Noon – 9:30 p.m.
    •  Muir Beach: 5:45 a.m. – 1:00 p.m.
    •  Tennessee Valley: 6:15 a.m. – Noon
    •  Randall: 10:00 a.m. – 6:00 p.m.
  • Saturday, 5/3 – Sweep a section of the course; 10-15 miles, close behind the last runner.

If you’re running the race, consider asking a friend or two to come along as volunteers. You’ll all have fun, and you won’t have to drive yourself all the way home after running 62 miles!

Driving Directions

VOLUNTEERS & CREWS:

Here are the location names to plug into your map app for directions to the Start/Finish & Aid Stations. We recommend you do this before race day, since there is no cell service in some areas of the course.

CREWS:

Remember, crews are only allowed at “Crew OK” locations:

  • Stinson Beach Community Center (for Start/Finish; Crew OK)
  • Marine Way, Stinson Beach, CA (for race parking; Crew OK)
  • Muir Beach Parking Lot (Crew OK after 8:00 a.m.)
  • Tennessee Valley Trailhead (Crew OK)
  • Conzelman Rd & McCullough Rd (BridgeView)
  • Cardiac Hill, Mill Valley
  • Bolinas – Fairfax Road & West Ridgecrest Boulevard
  • Randall Trailhead (Crew OK)

Thank You!

Big thanks to our 2024 Captains and Clubs, along with all the fantastic 2024 volunteers:

Course Captain: Ken Michal
Start/Finish: Jim Richards
Supplies: Gary Gellin & Richie Boulet
Timing Captain: Lisa Heinselman
RD Support: Erick Kasiulis & Ken Preston
Vocals: Michelle Fallone
Muir Beach: Fred Liebes & Charlene Bayles, with Charles Zuckerman
Tennessee Valley: Stan Jensen, with Nomadic Adventure Club
Bridge View: Ana Braga-Levaggi, with RBO
Cardiac: San Francisco Running Company 
Bolinas Ridge: Coastside Running Club, with Paula Leuzzi & Margaret Branick-Abilla
Randall Trail: Chuck Wilson (& the Barfies)