| 2011 Nielsen Pro Tennis Championship | |
|---|---|
| Date | 26 June – 3 July |
| Edition | 20th |
| Surface | Hard |
| Location | Winnetka, Illinois, United States |
| Champions | |
| Singles | |
 James Blake | |
| Doubles | |
 Treat Conrad Huey / Bobby Reynolds | |
The 2011 Nielsen Pro Tennis Championship was a professional tennis tournament played on hard courts. It was the 20th edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Winnetka, Illinois, between June 26 and July 3, 2011.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| USA | Michael Russell | 90 | 1 |
| USA | James Blake | 102 | 2 |
| USA | Donald Young | 111 | 3 |
 JPN | Go Soeda | 131 | 4 |
| USA | Bobby Reynolds | 138 | 5 |
 ARG | Brian Dabul | 141 | 6 |
 CHI | Paul Capdeville | 142 | 7 |
 RSA | Rik de Voest | 147 | 8 |
The following players received wildcards into the singles main draw:
James Blake Robby Ginepri Evan King Jack Sock The following players received entry as a special exempt into the singles main draw:
The following players received entry from the qualifying draw:
James Blake def. Bobby Reynolds, 6–3, 6–1
Treat Conrad Huey / Bobby Reynolds def. 
Jordan Kerr / Travis Parrott, 7–6(9–7), 6–4
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