The City Championship is an American men's college basketball rivalry game between the Aztecs of San Diego State University (SDSU) and the Toreros of the University of San Diego (USD).

The San Diego State Aztecs men's basketball team is a member of the Mountain West Conference.

USD's first win in the series was on January 22, 1965, an 89-85 victory at Peterson Gym.

The 2015 matchup took place on neutral ground at Petco Park, home of the San Diego Padres, as part of the first ever Bill Walton Basketball Festival.

In the second half, the Aztecs came back strong, but the Toreros were able to hold on for a final 53–48 score.