Koo Kien Keat
Saputra represented Singapore at the 2006 Commonwealth Games in Melbourne, Australia, where he competed in the mixed doubles. Playing with Li Yujia, he defeated Kenya's Victor Odera and Irene Kerimah, Canada's Mike Beres and Valerie Loker, and Australia's Travis Denney and Kate Wilson-Smith in the preliminary rounds, before losing out the semi-final match to English pair Nathan Robertson and Gail Emms, with a score of 21–19, 14–21, and 17–21. Despite their semi-final loss, Saputra and Li managed to beat the neighbouring Malaysian duo Koo Kien Keat and Wong Pei Tty for the bronze medal victory, attaining a three-set score of 21–14, 21–23, and 21–6.