The 2026 Busan Open was a professional tennis tournament played on hardcourts. It was the 23rd edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Busan, South Korea between 13 and 19 April 2026.
Singles main-draw entrants Seeds Country Player Rank1 SeedJames Duckworth861Adam Walton1112Sho Shimabukuro1123Coleman Wong1254Dane Sweeny1355Alex Bolt1546Bu Yunchaokete1597Leandro Riedi1688* 1 Rankings as of 6 April 2026.
Other entrants The following players received wildcards into the singles main draw: Chung Yun-seong Kwon Soon-woo Park Ui-sung
The following player received entry into the singles main draw using a protected ranking: Ilya Ivashka
The following players received entry from the qualifying draw: Taro Daniel Jake Delaney Kasidit Samrej Marat Sharipov Renta Tokuda Wu Tung-lin
The following player received entry as a lucky loser: James Trotter
Champions Singles
Leandro Riedi def. Bu Yunchaokete 3–6, 6–3, 6–2.
Doubles
Anirudh Chandrasekar / Takeru Yuzuki def. Jean-Julien Rojer / Theodore Winegar 4–6, 6–3, [10–7].
References