Summit Rock 2026

The Summit Rock 2026 10K, 5K, Half Marathon, and Hiker Division returns to Saratoga in California on December 12th. The event is nestled amidst the majestic redwood groves of Sanborn County Park, just outside Silicon Valley.
Race morning brings a crisp yet comfortable chill, with temperatures hovering around an average of 11.5°C, which feels much like it due to the high humidity at 78.3%. The area is known for its firm and slightly soft trail conditions, making it perfect for those who love exploring nature while running or hiking.
Since 2014, this race has been a cherished tradition in Saratoga, drawing participants from all over. With thousands of runners participating each year, the event supports local charities and scholarships through donations collected during registration. The community rally around this run highlights its importance to those who live nearby and those visiting for the day.
The course venue starts at Sanborn County Park, where half marathon and 10K runners will ascend to breathtaking peaks offering stunning views. All distances include single-track trails that are both challenging and rewarding. Runners can expect a mix of uphill climbs and downhill sections; experienced trail runners enjoy the adventure while newcomers discover the beauty in walking the hills.
The race starts at various times, with half marathon participants beginning their journey at 7:30 am for the Hiker Division, followed by the 10K run starting at 8:45 am. The main event kicks off promptly at 9:00 am with the 5K runners. Each distance includes its own unique features and challenges.
Weather conditions on race day are expected to be mild but slightly damp with an average rainfall of just under 3.6mm, ensuring a comfortable run despite any occasional drizzle. The UV index is low at 2.0, indicating minimal sun exposure risk throughout the event.
The distances offered include the Half Marathon covering 21km, the 10K running 10km, and the 5K completing 5km. There's also a Hiker Division for those planning to take more than three hours to complete the half marathon. Registration is open via https://raceroster.com/events/2026/115607/summit-rock-2026 with fees ranging from $60.96 to $103.66, and an access code required for Hiker Division participants.
Bibs can be picked up on December 8th at Saratoga Town Hall between the hours of 4:00 pm and 7:00 pm, where runners should bring their registration confirmation emails along with a photo ID to verify age requirements. The start location is at Sanborn County Park off of Summit Road in Saratoga.
This race offers an opportunity for both experienced trail enthusiasts and newcomers to explore the redwood groves while contributing to local causes. It's not just about running; it's about connecting with nature, supporting community initiatives, and enjoying a beautiful December day in California.