The 2019 Oracle Challenger Series – New Haven was a professional tennis tournament played on outdoor hard courts.

This tournament was part of the 2019 ATP Challenger Tour[1] and the 2019 WTA 125K series.

[2] The first edition took place from September 2 to 8, 2019 at the Cullman-Heyman Tennis Center in New Haven, United States.

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 as alternates: The following players received entry from the qualifying draw: The following players received wildcards into the singles main draw: The following players received entry into the singles main draw through protected rankings: The following players received entry into the singles main draw as alternates: The following players received entry from the qualifying draw: