Great American Ball Park is a baseball stadium in Cincinnati, Ohio, which is the home field of Major League Baseball's Cincinnati Reds. It opened in 2003, replacing Cinergy Field (formerly Riverfront Stadium), their home field from 1970 to 2002. The park's name comes from the Great American Insurance Group. The ballpark hosted the 2015 Major League Baseball All-Star Game. The Reds put in $5 million for improvements, which included two new bars and upgraded concession stands.