Japan Open: men's singles champions
Carlos Alcaraz won the 2026 title, beating Jiri Lehecka 7-6(4) 6-4 in the final. Our archive has 51 editions since 1972; Stefan Edberg has won it most often, 4 times.
Most titles
- Stefan Edberg41987, 1989, 1990, 1991
- Pete Sampras31993, 1994, 1996
- Ken Rosewall21972, 1973
- Jim Courier21992, 1995
- Kei Nishikori22012, 2014
- Carlos Alcaraz22025, 2026
Titles by country
Youngest and oldest champions
- Youngest
- Jimmy Arias, 18 in 1982
- Oldest
- Ken Rosewall, 38 in 1973
Age when the tournament began.
Every final
Finals of the tour-level event in our match archive, matched by tournament across name changes. Every champion is checked against an independent record; a year where the two disagree is left out until it is resolved, and a missing year means the event was not held or is not in the archive.