2013 Nielsen Pro Tennis Championship

The 2013 Nielsen Pro Tennis Championship was a professional tennis tournament played on hard courts. It was the 22nd edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Winnetka, Illinois, between 1 and 7 July 2013.

Seeds

 * 1 Rankings are as of June 24, 2013.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇺🇸 Jarmere Jenkins
 * 🇺🇸 Evan King
 * 🇺🇸 Dennis Nevolo
 * 🇺🇸 Jack Sock

The following players received entry as an alternate into the singles main draw:
 * 🇺🇸 Eric Quigley
 * 🇺🇸 Michael McClune
 * Ante Pavić

The following players received entry from the qualifying draw:
 * 🇺🇸 Sekou Bangoura
 * 🇺🇸 Jeff Dadamo
 * 🇺🇸 Kevin King
 * Mārtiņš Podžus

Singles

 * 🇺🇸 Jack Sock def. 🇺🇸 Bradley Klahn 6–4, 6–2

Doubles

 * 🇮🇳 Yuki Bhambri / 🇳🇿 Michael Venus def. 🇮🇳 Somdev Devvarman / 🇺🇸 Jack Sock 2–6, 6–2, [10–8]