Apr 13 (OPTA) - Seeds Progress from the ATP World Tour 250, USCC Men's Singles matches on Thursday .. Seeds .. Seed Round Rslt Opponent Score 1 John Isner (USA) qtr to play 6-Steve Johnson (USA) (start 23:00) 2nd won Henri Laaksonen (SUI) 6-4 6-2 1st won (Bye) 2 Sam Querrey (USA) 2nd lost Guido Pella (ARG) 2-6 7-6(4) 7-6(3) 1st won (Bye) 3 Jack Sock (USA) 2nd to play Horacio Zeballos (ARG) (start 00:30) 1st won (Bye) 4 Nick Kyrgios (AUS) qtr to play Ivo Karlovic (CRO) (start 19:00) 2nd won Bjorn Fratangelo (USA) 6-7 6-1 6-2 1st won (Bye) 5 Fernando Verdasco (ESP) 1st lost Denis Kudla (USA) 6-4 7-6(4) 6 Steve Johnson (USA) qtr to play 1-John Isner (USA) (start 23:00) 2nd won Frances Tiafoe (USA) 6-3 6-4 1st won Ernesto Escobedo (USA) 3-6 7-6(5) 6-2 7 Ryan Harrison (USA) 2nd lost Taylor Fritz (USA) 3-6 6-0 6-3 1st won Miomir Kecmanovic (SRB) 6-4 6-3 8 Tennys Sandgren (USA) qtr to play Guido Pella (ARG) (start 17:00) 2nd won Nicolas Kicker (ARG) 6-2 7-6(3) 1st won Blaz Kavcic (SLO) 6-2 6-2 (Note : all times are GMT)