The original park site was part of the former Augusta International Speedway. The land purchased by the City of Augusta then became known as the future site of the South Augusta Sports Complex. In 1999, a naming contest was held among the elementary schools in Richmond County that resulted in the name Diamond Lakes.
Diamond Lakes Regional Park opened on November 11, 1999 on land formerly known as the Augusta International Raceway. The land was purchased in 1996 and funded primarily by SPLOST funds.
On November 11, 1999, opening ceremonies on the adult side commenced with the opening pitch thrown by resident Georgia ASA Hall of Fame members Buck Salter, Pat Rachels, Earl Babbitt, Cotton Harris, and Dick Johnson. The year 2000 marked the opening pitch on the youth side as league play began.
The community center and library, opened in September of 2005 This joint use facility was the result of the cooperative efforts between the Augusta Recreation & Parks Department and the East Central Georgia Regional Library.
In 2006 and 2007, the Special Purpose Local Option Sales Tax Phase V provided a total of $800,000 for continued improvements to the Park, including construction of a new entrance / exit to the Park off of Willis Foreman Road.
Well over 300 tournaments and thousands of league games have hosted at Diamond Lakes. Diamond Lakes has hosted two ASA National Tournaments, a USSSA Military World Series,and numerous athletic associations tournaments such as ASA, USSSA, SPA, NSA, ISA, GHSA, BPA, WFA, GRPA, USFA, Triple Crown Sports, Terry Pendleton Baseball, Lisa Fernandez Softball, and the Georgia Games.