| 2014 Nielsen Pro Tennis Championship | |
|---|---|
| Date | 30 June – 6 July |
| Edition | 23rd |
| Surface | Hard |
| Location | Winnetka, Illinois, United States |
| Champions | |
| Singles | |
 Denis Kudla | |
| Doubles | |
 Thanasi Kokkinakis / Denis Kudla | |
The 2014 Nielsen Pro Tennis Championship was a professional tennis tournament played on hard courts. It was the 23rd edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Winnetka, Illinois, between 30 June and 6 July 2014.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| USA | Michael Russell | 94 | 1 |
| USA | Tim Smyczek | 106 | 2 |
 RUS | Evgeny Donskoy | 114 | 3 |
 TUN | Malek Jaziri | 121 | 4 |
| AUS | Sam Groth | 124 | 5 |
 IND | Somdev Devvarman | 125 | 6 |
| USA | Denis Kudla | 136 | 7 |
 LTU | Ričardas Berankis | 139 | 8 |
The following players received wildcards into the singles main draw:
Marcos Giron Jared Hiltzik Evan King Raymond Sarmiento The following player received entry as a lucky loser into the singles main draw:
The following players received entry from the qualifying draw:
Ronnie Schneider Mackenzie McDonald Dennis Nevolo Eric Quigley Denis Kudla def. 
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