South Hills Single Track Trail Run - Fall

South Hills Single Track Trail Run - Fall takes place in San José, California, on September 12, 2026, with a very broad menu of trail distances: a 50K (31 miles), a Trail Marathon (26.2 miles), a 16 Mile, a half marathon (13.1 miles), a 9 Mile, a 10K, a 5K and a 1-mile run. As the name says, single track is the setting.

With eight distances on one day, this is an event for a group of runners at very different levels to share. The mile and 5K are open to nearly anyone, the 9- and 16-mile options fill the gaps that standard distances leave, and the marathon and 50K are real trail goals. Single track means narrow trail, limited passing and more attention to footing, so run some of your training on similar paths. Plan 8 to 12 weeks for the shorter races and 16 weeks with weekly long runs on hills for the marathon and 50K.