2026 Japan Open Tennis Championships
Tennis tournament
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The 2026 Kinoshita Group Japan Open Tennis Championships is a men's tennis tournament to be played on outdoor hardcourts. It will be the 52nd edition of the Japan Open, and an ATP 500 tournament on the 2026 ATP Tour. It will be held at the Ariake Coliseum in Tokyo, Japan, from 30 September to 6 October 2026.[1]
| 2026 Japan Open Tennis Championships | |
|---|---|
| Date | 30 September–6 October |
| Edition | 52nd |
| Category | ATP 500 |
| Draw | 32S/16D |
| Surface | Hard / outdoor |
| Location | Tokyo, Japan |
| Venue | Ariake Coliseum |
| 2025 Champions | |
| Singles | |
 Carlos Alcaraz | |
| Doubles | |
 Hugo Nys /  Édouard Roger-Vasselin | |
Champions
Singles
vs.
Doubles
- / vs. /
Singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| ESP |
Carlos Alcaraz | 3 | 1 |
 USA |
Ben Shelton | 4 | 2 |
| USA |
Frances Tiafoe | 8 | 3 |
| USA |
Taylor Fritz | 10 | 4 |
| ESP |
Rafael Jódar | 14 | 5 |
| USA |
Brandon Nakashima | 16 | 6 |
 NOR |
Casper Ruud | 17 | 7 |
| USA |
Tommy Paul | 18 | 8 |
- 1 Rankings are as of 21 September 2026.[2]
Other entrants
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Doubles main-draw entrants
Seeds
| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 [[|]] |
[[|]] |
1 | |||
| [[|]] |
[[|]] |
2 | |||
| [[|]] |
[[|]] |
3 | |||
| [[|]] |
[[|]] |
4 |
- Rankings are as of 21 September 2026.
Other entrants
The following pairs received wildcards into the doubles main draw:
- /
- /
The following pair received entry from the qualifying draw:
- /