2013 Nielsen Pro Tennis Championship
Date	1–7 July
Edition	22nd
Surface	Hard
Location	Winnetka, United States
Champions
Singles
Jack Sock
Doubles
Yuki Bhambri / Michael Venus
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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.

Country	Player	Rank1	Seed
RUS	Alex Bogomolov Jr.	81	1
USA	Steve Johnson	98	2
USA	Jack Sock	102	3
USA	Tim Smyczek	120	4
IND	Somdev Devvarman	136	5
GER	Mischa Zverev	145	6
USA	Donald Young	154	7
USA	Bradley Klahn	178	8

• ¹ Rankings are as of June 24, 2013.

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

• Jack Sock def. Bradley Klahn 6–4, 6–2

• Yuki Bhambri / Michael Venus def. Somdev Devvarman / Jack Sock 2–6, 6–2, [10–8]

• Official website Archived 2011-07-14 at the Wayback Machine