Results from the ATP/WTA Madrid Open on Wednesday (x denotes seeding): Men 2nd round Alexander Zverev (GER x5) bt Kei Nishikori (JPN) 6-3, 6-2 Aslan Karatsev (RUS) bt Diego Schwartzman (ARG x7) 2-6, 6-4, 6-1 Christian Garin (CHI x16) bt Dominik Koepfer (GER) 6-3, 6-4 Daniil Medvedev (RUS x2) bt Alejandro Davidovich (ESP) 4-6, 6-4, 6-2 Women Quarter-finals Ashleigh Barty (AUS x1) bt Petra Kvitova (CZE x9) 6-1, 3-6, 6-3 Paula Badosa (ESP) bt Belinda Bencic (SUI x8) 6-4, 7-5 afp