Results from the ATP tournament in Halle on Thursday (x denotes seeding): 2nd rd Ugo Humbert (FRA) bt Alexander Zverev (GER x3) 7-6 (7/4), 3-6, 6-3 Sebastian Korda (USA) bt Kei Nishikori (JPN) 2-6, 6-3, 7-5 Lloyd Harris (RSA) bt Lukas Lacko (SVK) 6-3, 7-6 (10/8) afp