In its heyday in the mid-20th century, the fairgrounds hosted over 1.4 million people annually in public and private events.
[3] Aside from the annual fair, the facilities host weddings, dog training, and off-track horse betting.
On October 28, 1940, with support from the San Jose Chamber of Commerce, the county purchased the Macomber family's 97 acres (39 ha) of land along Old Tully Road for $35,000 to serve as a permanent fairgrounds.
[5] The track hosted important events, including a qualifying round of the Speedway World Championship in 1976.
[6][7] In 1978, the San Jose Speedway (cars) relocated to a 1⁄4-mile-long (0.40 km) dirt oval track at the fairgrounds.
[9] In 2020, the Santa Clara County Public Health Department canceled all events at the fairgrounds and opened a testing and mass vaccination site there as part of its response to the COVID-19 pandemic.
[1] San Jose State University began raising funds to build a $25 million Speed City Legacy Center, including a track to replace the historic Bud Winter Field, which was demolished in 2019.