Sloan Park was built and paid for by residents of the City of Mesa, approved by ballot measure.

It was primarily built to house spring training operations for the Chicago Cubs, who had previously played at nearby Hohokam Stadium.

The dimensions of the playing surface closely match those of the Cubs' regular home stadium, Wrigley Field.

With a capacity of 15,000, Sloan Park is the largest spring training stadium by capacity in Major League Baseball, surpassing Camelback Ranch in Glendale (coincidentally, spring training home of the Cubs' in-city rival the Chicago White Sox) by 2,000 seats.

[5] That single-game mark was shattered again on February 25, 2023, when the Cubs packed in 16,152 fans against the San Francisco Giants.