Mt. Tam Wild Boar Half Marathon & 10K
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Mt. Tam Wild Boar Half Marathon & 10K : April 24, 2027
The event takes place at Mt Tamalpais State Park in Mill Valley, California, and offers two distances:
- Half Marathon
- 10K
The course uses a combination of paved roadways and dirt single track trails along the spine of Bolinas Ridge. Runners start at Rock Springs and follow Ridgecrest Boulevard with views of Bolinas Lagoon, the Pacific Ocean and the Marin County watershed. 10K runners turn left onto Willow Camp Trail and return to Rock Springs via the Coastal Trail. Half marathon runners continue on Ridgecrest Boulevard to Bolinas/Fairfax Road before returning on the Coastal Trail.
The race is limited to 300 participants. The course is marked with orange ribbon; a course monitor will direct the 10K turn and the half marathon turnaround is signed. Course cut-off time is 3 hours. Hikers and walkers are welcome.
Aid stations: the 10K has one aid station at mile 5; the half marathon has aid stations at mile 2.35, mile 7 and mile 12; food and drink are available at the finish. Participants are advised to carry water. Bib numbers are mailed beginning two weeks before the event; if a bib is not received it can be picked up on race morning.
All participants receive a T-shirt. Medals are awarded to all half marathon finishers and personalized award ribbons are mailed to top three male and female finishers in each age group.
Registrations are non-refundable and non-transferable; a rollover credit (amount paid minus a $20 fee) is available if the participant cancels by March 24, 2027 unless refund protection was purchased at checkout. Parking is available at the Rock Springs parking area and is directed by parking attendants. Headphones and other audio devices are not allowed on course. Visit the organization's website for the most recent information.
