The 2023 Gwangju Open was a professional tennis tournament played on hardcourts. It was the 6th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Gwangju, South Korea between 1 and 7 May 2023.

Singles main-draw entrants Seeds Country Player Rank1 SeedMax Purcell891Christopher Eubanks902Jordan Thompson913James Duckworth1024Emilio Gómez1155Rinky Hijikata1416Aleksandar Vukic1427Denis Kudla1468 1 Rankings as of 24 April 2023.

Other entrants The following players received wildcards into the singles main draw: Chung Yun-seong Park Ui-sung Shin San-hui

The following players received entry into the singles main draw as alternates: Bu Yunchaokete Evgeny Donskoy Yuta Shimizu

The following players received entry from the qualifying draw: Peter Gojowczyk Omar Jasika Jason Jung Daniel Masur Dominik Palán Luke Saville

Champions Singles

Jordan Thompson def. Max Purcell 6–3, 6–2.

Doubles

Evan King / Reese Stalder def. Andrew Harris / John-Patrick Smith 6–4, 6–2.

References