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Trail Running calendar near Fairfield 2026-2027

We have found 147 Trailruns within 80 miles of Fairfield. See below where and when you can find the races.

South Hills Single Track Trail Run - Spring

San Jose - 63 mi from Fairfield

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A multi-distance trail event on March 22, 2025 at Calero County Park in San Jose offering runs from a kids race to a 50K, single track and dirt-road courses, multiple aid stations, and per-distance time limits.

April 2027

Santa Teresa King Richard Annual Trail Run

San Jose - 63 mi from Fairfield

A spring trail race at Pueblo Day Use Area in Santa Teresa County Park on April 5, 2025 offering 5K, 10K, 10 Mile and a half marathon across marked, hilly trails with aid stations and a four hour half marathon limit.