Quicksilver Running Club of San Jose California, also known as QRC, was established to promote physical well-being and friendships through running.

Formerly known as Fleet Feet Running Club of San Jose, the club currently puts on two races in the historic Almaden-Quicksilver Park of San Jose, California.

The Quicksilver 50 Mile/50k/25k race usually takes place within the first two weeks of May each year.  It has become a favorite of Ultra-Runners from around the country because of the ideal terrain, its model training for the Western States 100 and the perfect weather conditions. 

In the first week of October every year, the Quicksilver Challenge Half Marathon/10k/5k affords the entrant a truly challenging course but with it, Santa Clara County's most spectacular scenery.