Expo: Thu.–Sat., Sept. 16–18, 9 a.m.
Sports Basement (610 Old Mason St., the Presidio)
Race: Sunday, Sept. 19, 5:40 a.m.
Starts: Embarcadero & Mission St.
The expo features the best in running, health, and nutrition. The full course winds through the city and across the Golden Gate to finish at the Bay Bridge, with options for an ultramarathon, two half marathons, a 10K, a 5K, and a virtual race. Free (expo/viewing), visit website for registration pricing, 888-958-6668, thesfmarathon.com