The 2026 Kinoshita Group Japan Open Tennis Championships was a men's tennis tournament played on outdoor hardcourts. It was the 52nd edition of the Japan Open, and an ATP 500 tournament on the 2026 ATP Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from 30 September to 6 October 2026.
Champions Singles
Carlos Alcaraz def. Jiří Lehečka, 7–6(7–4), 6–4
Doubles
Austin Krajicek / Nikola Mektić def. Théo Arribagé / Albano Olivetti, 7–6(7–5), 5–7, [10–6]
Singles main-draw entrants Seeds Country Player Rank1 Seed Carlos Alcaraz31 Frances Tiafoe82 Taylor Fritz103 Rafael Jódar144 Brandon Nakashima165Casper Ruud176 Tommy Paul187 Valentin Vacherot198 1 Rankings are as of 21 September 2026.
Other entrants The following players received wildcards into the singles main draw: Kei Nishikori Rei Sakamoto Sho Shimabukuro
The following player used a special exempt into the singles main draw: Kyrian Jacquet
The following players received entry from the qualifying draw: Arthur Fils Jaume Munar Stefanos Tsitsipas Adolfo Daniel Vallejo
The following player received entry as a lucky loser: Jaime Faria
Withdrawals João Fonseca → replaced by Luca Van Assche Lorenzo Musetti → replaced by Jaime Faria Ben Shelton → replaced by Alex Michelsen
Doubles main-draw entrants
Seeds Country Player Country Player Rank1 SeedSimone BolelliAndrea Vavassori231Théo ArribagéAlbano Olivetti392Hugo NysÉdouard Roger-Vasselin453Austin KrajicekNikola Mektić554 Rankings are as of 21 September 2026.
Other entrants The following pairs received wildcards into the doubles main draw: Rinky Hijikata / Kaito Uesugi Shintaro Mochizuki / Seita Watanabe
The following pair received entry using a protected ranking: Petr Nouza / Michael Venus
The following pair received entry from the qualifying draw: David Stevenson / Marcus Willis
The following pair received entry as lucky losers: Jean-Julien Rojer / Theodore Winegar
Withdrawals Evan King / Brandon Nakashima → replaced by Jean-Julien Rojer / Theodore Winegar
References
External links Official website