Crystal Springs (Winter) Trail Run
Woodside, United States • 18 Jan 2026
Crystal Springs Trail Run
The Crystal Springs Trail Run takes place on Sunday, January 18, 2026, at Huddart Park (Werder Shelter), 1100 Kings Mountain Road, Woodside, CA 94062. Distances offered include:
- 8K
- Half Marathon
- 35K
- Marathon
- 50K
- Kid's Run (6yo & younger, 50 yd dash) - Free
Check-in is on race day at Huddart Park; participants are asked to arrive about 45 minutes before their event to receive bibs and shirts. To guarantee a shirt, register at least 10 business days before the event. Parking is $6 per vehicle; exact change is requested. There is no bag check; non-valuables may be left at the start/finish. Bib numbers indicate the chosen distance; distance changes should be requested by e-mail or at check-in. Awards include T-shirts for pre-registered runners, custom medals for all finishers, a custom coaster for 50K finishers, and monetary race credits for the top three overall finishers.
Course, aid stations and rules
The course is marked with ribbon approximately every 200 yards and color coded by distance; polka-dot flagging indicates turns and blue ribbons mark wrong-way junctions. Elevation gain and surface by distance: 8K - 710' (48% single track, 40% dirt road, 12% asphalt); Half Marathon - 2,190' (78% single track, 18% dirt road, 4% asphalt); 35K - 2,990' (87% single track); Marathon - 3,790' (72% single track, 26% dirt road); 50K - 4,530' (72% single track, 26% dirt road). Fully stocked aid stations appear every 5 to 9 miles with fruit, salty snacks, candy, water, and Skratch drink; runners are recommended to carry at least 20 oz of water between aid stations. The event is cupless; participants should bring their own fluid container. Headphones are allowed only on dirt road sections and are not permitted on single-track trail, when crossing paved roads, at aid stations, or while crossing the finish line. The race uses MyLaps bibtags for timing and posts results on the website. Warnings note possible poison oak and occasional bees or yellow jackets. Visit the organization's website for the most recent information.