Results of matches played at the WTA Adelaide International at Memorial Drive in Adelaide on Friday (X denotes seed): Semi-finals Iga Swiatek (POL X5) bt Jil Teichmann (SUI) 6-3, 6-2 Belinda Bencic (SUI X2) bt Coco Gauff (USA) 7-6 (7/2), 6-7 (4/7), 6-2 afp