SPASM Crystal Springs Trail Run

Woodside, California, United States

Aug 31, 2025

Trail running

Past event · 2025 edition

SPASM Crystal Springs Trail Run

Woodside California

Aug 31, 2025

10K Half-Marathon 35.4K Marathon +2 Trail running Running

Free – $100.00

New date announced

Go to the 2026 edition page

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About this race

Experience the towering redwoods, lush ferns, and beautiful trails through Huddart Park, King's Mountain and Bear Gulch. (Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)

Ready to test your limits? The SPASM Crystal Springs Trail Run brings a highly anticipated 10K, Half-Marathon, 35.4K, Marathon, 49.7K, 3.2K to Woodside on August 31, 2025. Expect a fantastic route right in the heart of California.

Pick your distance

Trail running

8K

Aug 31, 2025 10K 8:45 AM

$70.00

Closed

Half Marathon

Aug 31, 2025 Half-Marathon 8:30 AM

$80.00

Closed

35K

Aug 31, 2025 35.4K 8:00 AM

$85.00

Closed

Marathon

Aug 31, 2025 Marathon 8:00 AM

$90.00

Closed

50K

Aug 31, 2025 49.7K 8:00 AM

$100.00

Closed

Running

Coastal Testing

Aug 31, 2025 3.2K 7:45 AM

Free

Closed

About Woodside

SPASM Crystal Springs Trail Run takes place in Woodside, California, United States. The local timezone is America/Los_Angeles.

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.