Mt. Tam Wild Boar Half Marathon & 10K
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Mt. Tam Wild Boar Half Marathon & 10K
The event takes place at Mt Tamalpais State Park in Mill Valley, California, and offers two distances:
- Half Marathon
- 10K
The course is a combination of paved roadways and dirt single-track trails along the coastal ridge. Runners follow Ridgecrest Boulevard from the Rock Springs start, running the spine of Bolinas Ridge between East and West Marin County. The route provides 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 on the Coastal Trail. Half marathon runners continue to Bolinas/Fairfax Road and also return via the Coastal Trail.
The race is limited to 300 participants. The course is marked with orange ribbon; a course monitor will direct 10K runners and the half marathon turnaround is signed. Aid stations are placed 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. Hikers and walkers are welcome. The course cut-off time is 3 hours, which equates to a 13:45 min per mile pace for half marathoners and 29 min per mile for 10K runners.
Bibs are mailed beginning two weeks before the event; unreceived bibs may be picked up on race morning. T-shirts are provided to participants, medals are awarded to all half marathon finishers, and award ribbons for top three male and female finishers in each age group are mailed after the race. Parking is available in the Rock Springs parking area and attendants will direct vehicles. Headphones and other audio devices are not allowed on course for safety reasons. Registrations are non-refundable and non-transferable; without purchased refund protection, cancellations made by March 24, 2027 may receive a rollover credit minus a $20 fee. Visit the organization's website for the most recent information.
