2019 Nielsen Pro Tennis Championship
The 2019 Nielsen Pro Tennis Championship was a professional tennis tournament played on hard courts. It was the 28th edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Winnetka, Illinois, between 8 and 14 July 2019.
Singles main-draw entrants
Seeds
1 Rankings are as of July 1, 2019.Other entrants
The following players received wildcards into the singles main draw:The following player received entry into the singles main draw using a protected ranking:
The following players received entry into the singles main draw using their ITF World Tennis Ranking:
The following players received entry from the qualifying draw: