2023 Busan Open

Country	Player	Rank1	Seed
AUS	Max Purcell	89	1
USA	Christopher Eubanks	90	2
AUS	Jordan Thompson	91	3
ECU	Emilio Gómez	115	4
AUS	Rinky Hijikata	141	5
AUS	Aleksandar Vukic	142	6
JPN	Kaichi Uchida	150	7
CAN	Gabriel Diallo	169	8

* ¹ Rankings as of 24 April 2023.^[1]

The following players received wildcards into the singles main draw:

• Chung Hyeon
• Chung Yun-seong
• Nam Ji-sung

The following players received entry into the singles main draw as alternates:

• Omar Jasika
• Daniel Masur

The following players received entry from the qualifying draw:

• Jason Jung
• Yuki Mochizuki
• Hiroki Moriya
• Luke Saville
• Renta Tokuda
• Yasutaka Uchiyama

• Aleksandar Vukic def. Max Purcell 6–4, 1–0 ret.

• Evan King / Reese Stalder def. Max Purcell / Rubin Statham by walkover.