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Tamalpa Headlands 50K

Name: Tamalpa Headlands 50K
Start: 2025-08-16
End: 2025-08-16
Location: Mill Valley

Mill Valley, United States • 16 Aug 2025

The Tamalpa Headlands 50K is a challenging ultramarathon set in the stunning Marin County, California, featuring iconic trails such as Coastal, Miwok, and Dipsea. Scheduled for August 16, 2025, this single-loop race, established in 1998, offers approximately 6,500 feet of elevation gain, combining fast fire road running with steep climbs and technical sections. The event is presented by Nike Trail and the Tamalpa Runners, and it serves as the USATF 50k Trail Championship. Participants can enjoy breathtaking views of the Bay Area and Pacific Ocean while celebrating the sport of ultrarunning at the scenic Santos Meadow, the race's start and finish location. Visit the organization's website for the most recent information.

United States California Mill Valley

Race information

Website

50 km

6500 m+

50k

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday Mar 8

Marin Ultra Challenge

Sausalito - 4 mi from Mill Valley

50 km

50 mi

The Marin Ultra Challenge is a premier long-distance trail race held in Marin County, featuring a 50-mile and a 50K course. Scheduled for March 8, 2025, the event showcases some of the most scenic trails in the region, including the Marin Headlands, Mt. Tamalpais, and Muir Woods.Participants can exp..

Sunday Mar 9

Zoom Angel Island

Belvedere Tiburon - 5 mi from Mill Valley

Zoom Angel Island is a running event taking place on Angel Island, California, featuring multiple race distances: 5 miles, 10 miles, and 15 miles, along with a free Kid's Run for children aged 6 and younger. The event offers scenic trails with stunning views of Marin County and San Francisco. Partic..

Fri - Mon Mar 14-17

The Rattlesnake Ramble

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The Rattlesnake Ramble is a running event featuring a 5K, 10K, and Half Marathon, available in both live and virtual formats. Scheduled for March 14-17, 2025, the event takes place at China Camp State Park in Santa Venetia, California. Participants can choose from various trail courses, each offerin..

Sat - Sun Mar 22-23

The Big Alta

Lucas Valley-Marinwood - 9 mi from Mill Valley

28 km

50 km

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Saturday Mar 22

Redwood (Spring) Trail Run

Oakland - 16 mi from Mill Valley

...

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Sunday Mar 30

Lag Bon 10K

Fairfax - 6 mi from Mill Valley

10 km

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