Rolph #1 is located at the corner of Ceasar Chavez (formerly Army Street) and Potrero, in San Francisco's Potrero district. Tucked away between Highway 101 and one of the city's less inspiring residential neighborhoods. I've yet to find a player that actually likes this park. This diamond doesn't even have the thrill of seeing a long homerun land on the freeway because the hitter's back is to it.