As an affiliate of the Arizona Diamondbacks, the Cougars continue to set a standard of excellence, both on and off the field. In 2013, the Cougars welcomed their 10 millionth fan in franchise history, becoming the first Class-A team in Minor League Baseball history to reach the historic figure. In 2014, the Cougars captured their second Midwest League Championship, and set a team record with 91 regular-season wins.

As the only team with a Major League affiliation in Chicagoland, the Cougars provide the best in affordable and family-friendly fun throughout Chicagoland.