
At Tamalpa Runners, we believe in the power of community, fitness, and fun. Located in beautiful Marin County, CA, our club is dedicated to bringing together runners of all levels to enjoy the benefits of running and socializing.
Why Join Tamalpa Runners?
- Community Spirit:
Our members value the friendships and sense of community they experience here. With 76% of our members joining for the community, you’ll find a welcoming and supportive environment. - Locally Organized Races:
Participate in our popular TCRS monthly races, which are the most attended events in our club. These races are a great way to challenge yourself and connect with fellow runners. - Annual Social Events:
Enjoy our annual social events, where you can relax and have fun with your running buddies. These events are a highlight for many of our members. - Structured Workouts:
Benefit from our regular track workouts and exercise sessions, designed to help you improve your running skills and stay fit.

Join Us Today!
Whether you’re a seasoned runner or just starting out, Tamalpa Runners has something for everyone.
Join the nearly 300 members of our vibrant community and experience the joy of running in Marin County.
Our Activities Include:
TCRS Monthly Races:
Join the most participated activity in our club, with 86% of members taking part. These races are not only competitive but also a great way to bond with other runners.
Track Workouts:
Our structured track workouts are highly valued by our members. With 67% participation, these sessions are perfect for improving your speed and endurance.
Social Events:
Our annual social events are a favorite among our members. These gatherings are a fantastic opportunity to celebrate our achievements and enjoy each other’s company.
Featured Upcoming Events:
Ongoing Events
Track workout at San Rafael or Redwood High School: Tuesday evenings, 6:10pm (warm-up) 6:30pm workout. (unless otherwise noted on Tamalpa’s Facebook page, or by e-mail).
Track workout, Novato High School, Saturdays, 8am.
Ross Commons Group Runs, Sunday’s 8:30***
**note: These are informal group runs (that aren’t always consistently meeting).
115th Annual Dipsea Race
Sunday June 14
TCRS / TGA Biathlon
McInnis Park Golf Course
Sun. August 16
Race: Sunday, August 16, 2026
followed by Golf at 11am
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Recent Blog Posts
- TCRS / TGA Biathlon McInnis Park Golf Course Aug 16August TCRS / TGA BiathlonMcInnis Park Golf CourseRace: Sunday, August 16, 2026followed by Golf at 11am It’s almost that time again for the Tamalpa TCRS / TGA… Read more: TCRS / TGA Biathlon McInnis Park Golf Course Aug 16
- 27th Annual Tamalpa Headlands 50K August 1527th AnnualTamalpa Headlands 50KRegister Here & Volunteers Needed!Saturday, August 15th Presented by Arc’teryx and Tamalpa RunnersUSATF PA Grand Prix Event Total Purse $10,000 1st M/F: $2,500… Read more: 27th Annual Tamalpa Headlands 50K August 15
- Join Tamalpa at our Rucky ChuckyWestern States Aide Station June 27-28Looking for Adventure??!!Join Tamalpa at our Rucky ChuckyWestern States Aide Station June 27th / 28th 2026 Tamalpa Runners, friends, and families, have an incredible opportunity to support… Read more: Join Tamalpa at our Rucky ChuckyWestern States Aide Station June 27-28
- Dipsea Race History Exhibit June 12 – 14In honor of the 115th Dipsea Race, the Mill Valley Historical Society will be exhibiting some of the race’s 121-year-old history from 10am-6pm, Friday June 12-Sunday June… Read more: Dipsea Race History Exhibit June 12 – 14
- Marathon Training / Dipsea PracticesMarathon Training and Dipsea Practices(Continuing and) Starting Now What’s on your bucket list for 2026? How about a road marathon or a faster, stronger Dipsea Race in… Read more: Marathon Training / Dipsea Practices