The 2024 Busan Open was a professional tennis tournament played on hardcourts. It was the 21st edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Busan, South Korea between 8 and 14 April 2024.

Singles main-draw entrants Seeds Country Player Rank1 SeedJames Duckworth1051Otto Virtanen1652Sho Shimabukuro1693Mattia Bellucci1784Bu Yunchaokete1795Lloyd Harris1816Li Tu1867Coleman Wong1928* 1 Rankings as of 1 April 2024.

Other entrants The following players received wildcards into the singles main draw: Kwon Soon-woo Nam Ji-sung Roh Ho-young

The following players received entry from the qualifying draw: Altuğ Çelikbilek Chung Yun-seong Blake Ellis Yankı Erel Paul Jubb Rio Noguchi

Champions Singles

Yasutaka Uchiyama def. Hong Seong-chan 7–6(7–4), 6–3.

Doubles

Ray Ho / Nam Ji-sung def. Chung Yun-seong / Hsu Yu-hsiou 6–2, 6–4.

References