Quicksilver Endurance Runs

Join us for the 41st edition of the Quicksilver Endurance Runs, featuring both a challenging 50K and a scenic 100K race on hilly single track trails and fire roads at the Almaden Quicksilver County Park in San Jose, CA. Runners will traverse peaceful oak forests, meadows, and ridges with breathtaking views of the Santa Clara Valley and Santa Cruz Mountains. With great volunteers, swag, aid stations, and post-race refreshments, this event promises an unforgettable experience. The 100K race, a Western States 100 qualifying event, boasts over 13,000 feet of elevation gain, while the 50K offers 6,000+ feet of elevation gain with a 4:00pm cutoff at mile 22. Run for a good cause as 50% of race proceeds support non-profits benefiting children's health and trail advocacy projects. Don't miss out on this opportunity to challenge yourself and enjoy the beauty of nature. Sign up to volunteer or participate in this prestigious ultra-marathon event!