2013 Nielsen Pro Tennis Championship – Singles

June 2025 2013 Nielsen Pro Tennis Championship Singles USA Jack Sock USA Bradley Klahn 6–4, 6–2 singles doubles 2013 Nielsen Pro Tennis Championship John-Patrick Smith was the defending champion but decided not to participate. Jack Sock won the title, beating Bradley Klahn 6–4, 6–2.https://www.tennisworldusa.org/tennis/news/ATP_Tennis/11281/tennis-american-jack-sock-wins-atp-challenger-in-chicago/ Tennis - American Jack Sock wins ATP Challenger in Chicago tennisworldusa.org July 9, 2013 June 26, 2025 Seeds 30em RUS Alex Bogomolov Jr. (semifinals, retired) USA Steve Johnson (quarterfinals) USA Jack Sock (champion) USA Tim Smyczek (quarterfinals) IND Somdev Devvarman (semifinals) GER Mischa Zverev (quarterfinals, retired) USA Donald Young (quarterfinals) USA Bradley Klahn (final) Draw Finals Semifinals Final 175 1 RUS Alex Bogomolov Jr. 6 4 1r 8 USA Bradley Klahn 4 6 3 3/WC USA Jack Sock 3 6 77 5 IND Somdev Devvarman 6 4 65 8 USA Bradley Klahn 4 2   3/WC USA Jack Sock 6 6   Top half First round Second round Quarterfinals Semifinals 1 RUS A Bogomolov Jr. 6 6 CAN É Chvojka 4 3 Alt USA E Quigley 6 2 6 SUI A Bossel 2 6 4 WC USA E King 5 6 5 USA J Jung 7 4 7   USA T Sandgren 3 77 5 6 GER M Zverev 6 65 7 4 USA T Smyczek 6 1 6 IND Y Bhambri 4 6 1 AUS A Feeney 6 5 2 USA C Harrison 3 7 6 USA R Ginepri 63 0r Q USA J Dadamo 77 3 UZB F Dustov 6 68 4 8 USA B Klahn 3 710 6 1 RUS A Bogomolov Jr. 6 7 Alt USA E Quigley 4 5   USA J Jung 2 3 6 GER M Zverev 6 6 4 USA T Smyczek 6 1 6 USA C Harrison 3 6 1 Q USA J Dadamo 65 4 8 USA B Klahn 77 6 1 RUS A Bogomolov Jr. 6 3 6 GER M Zverev 2 0r 4 USA T Smyczek 3 5 8 USA B Klahn 6 7 1 RUS A Bogomolov Jr. 6 4 1r 8 USA B Klahn 4 6 3 Bottom half First round Second round Quarterfinals Semifinals 7 USA D Young 6 3 6 Q LAT M Podžus 4 6 2 WC USA J Jenkins 77 64 6 Q USA K King 64 77 4   USA A Krajicek 0 6 6 GBR A Bogdanovic 6 3 3   RSA F Wolmarans 2 62 3/WC USA J Sock 6 77 5 IND S Devvarman 67 6 6 Q USA S Bangoura 79 3 1 IND S Myneni 4 6 6 WC USA Dennis Nevolo 6 1 2 NZL M Venus 6 6 Alt CRO A Pavić 3 3 Alt USA M McClune 5 5 2 USA S Johnson 7 7 7 USA D Young 6 6 WC USA J Jenkins 2 2   USA A Krajicek 4 1 3/WC USA J Sock 6 6 5 IND S Devvarman 6 6 IND S Myneni 1 2   NZL M Venus 1 4 2 USA S Johnson 6 6 7 USA D Young 3 4 3/WC USA J Sock 6 6 5 IND S Devvarman 7 6 2 USA S Johnson 5 4 3/WC USA J Sock 3 6 77 5 IND S Devvarman 6 4 65 References External links Main Draw Qualifying Draw Nielsen Pro Tennis Championship - Singles 2013 Singles