The Spartan Trail San Jose, part of the Spartan Trail series, returns to Sanborn County Park near Saratoga, CA, on Saturday, September 27, 2025. This standalone event offers a trio of trail distances—10 K, half marathon (21 K), and a full 50 K ultra—on a challenging course nestled in the Santa Cruz Mountains.
Logistics & Support
- Start Times: Half marathon at 9 AM, 10 K at 11 AM, 50 K at 7 AM.
- Aid Stations: Stocked with water, electrolytes, fruit, gels, and snacks; runners should carry their own hydration for 10 K and above .
- Gear Requirements: Half marathon runners are encouraged to carry a 16 oz (0.5 L) water supply; 50 K runners must have a 1 L reservoir + mandatory bib and chip display .
- Cut‑offs: Enforced by Spartan Trail regulations to ensure safety; exact time limits vary by distance.
Atmosphere & Why It’s Unique
- Nestled in a redwood-laced canyon, the course balances beauty and challenge—perfect for nature-loving trail runners.
- As part of Spartan Trail’s “Trail Challenge” series, this event carries Spartan’s reputable organizational standards and trail-run authenticity.
- The 50 K ultra includes recent additions from Castle Rock State Park, featuring new technical and scenic segments.
- Spartan’s eco-conscious policies discourage littering and encourage mindful mountain stewardship.
