Total Financial Commitment. $3,798,915. ATP Elite Compete At Olympic Grounds. The Beijing Olympic Green Tennis Center, built for the 2008 Olympic Games, is the venue for the China Open. In 2011, the centre expanded to 11 courts. The venue also boasts a 15,000-seat stadium with a retractable roof, named the Diamond Court due to its likeness.
https://www.atptour.com/en/tournaments/beijing/747/overview