Trailquake
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Event overview
Trailquake takes place on May 10, 2026, at Sanborn Park, 16055 Sanborn Rd, Saratoga, California. The event offers three distances:
- Half marathon
- 10K
- 5K
All finishers receive custom finisher medals and shirts. Half marathon finishers receive a technical fabric shirt unless they request cotton. 10K and 5K finishers receive a cotton shirt with an option to upgrade to a technical shirt for $7. Shirt sizes range from youth small to men's 4XL.
Course and entry information
The routes run on trails through redwoods and pines, including single-track sections and segments on the San Andreas Trail. Half marathon and 10K courses include ascents to peaks with views. Walkers and hikers are permitted on the course. Trailquake is part of the Brazen Ultra Half Series, a series of half marathons noted by longer-than-standard distances in some cases and significant ascents and descents on varied trails. Registration categories include on-site and remote entries, with separate pricing for international remote runners. Registration fees vary by distance and increase as the event date approaches. Visit the organization's website for the most recent information.
