This event is in the past.It took place on April 25, 2026 at Mount Tamalpais State Park.


Lace up for 300-person trail race along Bolinas Ridge with Pacific Ocean and lagoon views. The 38th annual Wild Boar serves up a mix of paved road and dirt single-track through Mt. Tamalpais State Park, with half marathon and 10K options winding through coastal terrain.
intimate field size
coastal ridge running
mixed terrain
trail beginner friendly
Tips
🎧no headphones allowed on course
🏅all half marathon finishers get medals
💧carry water, aid stations at miles 2.35, 7, and 12
2026 Mt. Tam Wild Boar Half Marathon & 10K
Mill Valley


Lace up for 300-person trail race along Bolinas Ridge with Pacific Ocean and lagoon views. The 38th annual Wild Boar serves up a mix of paved road and dirt single-track through Mt. Tamalpais State Park, with half marathon and 10K options winding through coastal terrain.
intimate field size
coastal ridge running
mixed terrain
trail beginner friendly
Tips
🎧no headphones allowed on course
🏅all half marathon finishers get medals
💧carry water, aid stations at miles 2.35, 7, and 12
Make it an outing
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