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Quicksilver Running Club

Running with mountain lions since 1983

Quicksilver Endurance Runs - 100k & 50k

The 2020 Quicksilver 100K AND 50K Endurance Runs will take place on Saturday, May 9, 2020

The 2019 QSER Runner's Guide is available HERE to browse through the site menus.

Or, if you prefer to get the whole Runner's Guide in one big PDF, click HERE.

Registrations will open early November (sign up for the Watch list at the link below to be notified). The 100K filled up in a bit over an hour last year! We will have a waitlist and it's likely we'll accept a lot of people from the wait list as we did last year.

The two courses will be the same that we've used for the previous three years, and only slightly different than we used for the three years prior to that. We will have some great food and drinks for you after you finish, and the awesome celebratory atmosphere that you've come to expect from the Quicksilver Running Club.

The Quicksilver 100K race is a Western States 100 Mile Endurance Run qualifier as well as a UTMB qualifier (4 pts)!

The 100K:

  • 13,000+ Feet of Elevation Gain

  • Western States 100 qualifying race

  • 17-Hour Time Limit (16-Hour Time Limit for Western States qualification)

  • 4 points towards qualifying for the UTMB

  • PA/USATF Ultra Grand Prix Event

The 50K:

  • 6,000+  Feet of Elevation Gain

  • 14-Hour Time Limit

Plus, great swag and post-race party!

Please, check out this fantastic video about the 2015 Quicksilver 100k that was created by The Ginger Runner:

Quicksilver Running Club of San Jose is a 501(c) (4) nonĀ­profit tax exempt organization

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