Trailquake

Saratoga, United States • 10 May 2026

Trailquake 2026 is Brazen Racing’s trail event at Sanborn Park, 16055 Sanborn Rd., Saratoga, CA. It offers 5K, 10K, and half-marathon distances. Runners traverse redwoods and pines on spectacular single-track trails, with ascents to peaks that reward you with panoramic views.

The course suits all levels: experienced runners can push on the hills; newcomers can walk the climbs and conserve energy for flats and downhills. The atmosphere is playful and welcoming—watch for banana slugs along the way and feel the “Richter scale” return to the San Andreas Trail. Finishers can receive shirts or upgrade options; remote runner participation is available. Visit the organization's website for the most recent information.

Race information

21 km
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

The Stevens Creek Striders Reservoir Run, held in Cupertino, California, offers a scenic trail running experience with distances of a half marathon (13.2 miles), 11K, and a 2.5-mile Lollipop Loop charity run/walk. The course features shaded single-track trails and open ridge vistas, with challenging..

South Hills Single Track Trail Run takes place at Calero County Park in San Jose, California. The event offers a full slate of distances: 1 mile kids run, 5K, 10K, 9 mile, half marathon, 16 mile, trail marathon, and 50K. The course blends single-track trails and dirt roads, showcasing oak trees, hil..

Garin Park XC Challenge 2025, held at Garin/Dry Creek Pioneer Regional Parks on Garin Avenue in Hayward, California, is a 5K cross-country race described as a tough yet scenic run along the Garin Park ridge. Now in its 21st year, the event is part of the Pacific Association of USA Track & Field Cros..

The Mt. Umunhum Marathon, Race to the Top and Down, is a challenging trail running event held in Almaden Quicksilver County Park, San Jose, California. This marathon features a rugged course that begins at the Hacienda Entrance and ascends to the summit of Mt.Umunhum, one of the prominent peaks in t..

The Dick Collins Firetrails will take place in Castro Valley from Saturday 27 September 2025 to Sunday 28 September 2025. You can run between 42 and 100 kilometers.

UTMB Index

The Spartan Trail - San Jose Trail Challenge takes place in Sanborn County Park, located on the eastern slopes of the Santa Cruz Mountains near Saratoga, California. This scenic event offers three race distances: 10K, half marathon (21K), and 50K, featuring challenging, well-groomed trails with big..