2019 Fairfield Challenger
The 2019 Northbay Healthcare Men's Pro Championship was a professional tennis tournament played on hard courts. It was the fifth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Fairfield, California, United States between October 7 and October 13, 2019.
Singles main-draw entrants
Seeds
1 Rankings are as of September 30, 2019.Other entrants
The following players received wildcards into the singles main draw:The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser: