Results of matches played at the WTA Adelaide International tennis tournament in Adelaide on Monday (X denotes seed): Round One Danielle Collins (USA) bt Zheng Saisai (CHN) 7-6 (7/5), 6-1 Wang Qiang (CHN X8) bt Olivia Gadecki (AUS) 6-4, 6-3 Shelby Rogers (USA) bt Veronika Kudermetova (RUS) 6-3, 7-6 (7-4) Anastasija Sevastova (LAT) bt Carolina Garcia 6-2, 6-4 afp