Mt. Tam Wild Boar Half Marathon & 10K
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Mt. Tam Wild Boar Half Marathon & 10K : 39th Annual
The event is held at Mt Tamalpais State Park in Mill Valley, California and offers two distances:
- Half Marathon
- 10K
The course runs along coastal ridge trails with a mix of paved roadways and dirt single-track. Runners follow Ridgecrest Boulevard along the spine of Bolinas Ridge, with views of Bolinas Lagoon, the Pacific Ocean and the Marin County watershed. The start is at Rock Springs. 10K runners turn left onto Willow Camp Trail and return along the Coastal Trail. Half marathoners continue along Ridgecrest Boulevard to Bolinas/Fairfax Road and then return via the Coastal Trail.
The race is limited to 300 participants. The course is marked with orange ribbon; a course monitor will indicate the 10K turn and the half marathon turnaround is signed. Aid stations are located at mile 5 for the 10K, and at miles 2.35, 7 and 12 for the half marathon. Food and drink are available at the finish and participants are advised to carry water. Course cut off is 3 hours, with corresponding pace limits noted for each distance. Hikers and walkers are welcome.
Logistics include athlete check-in near the Mountain Theater for on-site bib pickup or distance changes; bibs are mailed beginning two weeks before the event. All participants receive a T-shirt; half marathon finishers receive medals and the top three male and female finishers in each age group receive personalized award ribbons that are mailed after the race. Parking is available in the Rock Springs Parking Area with attendants to guide vehicles. Registrations are non-refundable and non-transferable. Refund protection must be purchased at checkout; without it, cancellations by March 24, 2027 may receive a rollover credit minus a $20 fee. Visit the organization's website for the most recent information.
