2025 Japan Open
September 24 - September 30
Last Updated on September 30, 2025
The 2025 Japan Open, also known as the Kinoshita Group Japan Open Tennis Championships for sponsorship reasons, was a men’s professional tennis tournament held in Tokyo, Japan. It was part of the ATP Tour 500 series on the 2025 ATP Tour and was the longest-running ATP Tour tournament in Asia, having been founded in 1915 as the Japan International Championships and first played under the ATP banner in 1972. The event was organized by the Japan Tennis Association.
The 2025 edition took place from September 24 to September 30. The tournament was held at the Ariake Tennis Park, a large tennis complex in the Koto City of Tokyo. The venue included the Ariake Colosseum, which featured one of the first retractable roofs in tennis. The tournament was played on outdoor hard courts.
The draw for the singles tournament consisted of 32 players, while the doubles tournament had 16 pairs. The prize money for the tournament was $2,226,470, with the singles winner receiving 500 ATP ranking points and a prize of $416,365.1“Japan Open Overview“. atptour.com. Retrieved 11 August 2025.
Tournament Details
| Date | 24–30 September |
| Edition | 51st |
| Draw | 32 Singles / 16 Doubles |
| Category | ATP 500 |
| Total Prize Money | $2,226,470 |
| Surface | Hard |
| Location | Tokyo, Japan |
| Venue | Ariake Colosseum |
Tournament Links
| ATP Tournament Profile | ||
| Results | Draws | Schedule |
Champions
| Event | Champion(s) | Runner(s)-up |
| Singles | 🇪🇸 Carlos Alcaraz | 🇺🇸 Taylor Fritz |
| 6–4, 6–4 | ||
| Doubles | 🇲🇨 Hugo Nys 🇫🇷 Édouard Roger-Vasselin |
🇮🇳 Rohan Bopanna 🇯🇵 Takeru Yuzuki |
| 7–5, 7–5 | ||
Stars to Watch
Main article: Notable Players at the Kinoshita Group Japan Open Tennis Championships 2025
The 2025 Kinoshita Group Japan Open in Tokyo featured a top-tier ATP 500 draw led by World No. 1 Carlos Alcaraz, making his tournament debut after his US Open win. The field was strong, with second seed and 2022 champion Taylor Fritz and other contenders like Frances Tiafoe and Holger Rune. Notable absences included defending champion Arthur Fils and the injured 2023 winner, Ben Shelton. The event promised high-stakes action with stars like Casper Ruud and local wildcards Shintaro Mochizuki and Yoshihito Nishioka competing.
Prize Money and Ranking Points
Singles
| Stage | Prize Money (USD) | Ranking Points |
| Winner | $416,365 | 500 |
| Finalist | $224,035 | 330 |
| Semifinalists | $119,395 | 200 |
| Quarterfinalists | $61,000 | 100 |
| Round of 16 | $32,560 | 50 |
| Round of 32 | $17,365 | 0 |
Doubles (per team)
| Stage | Prize Money (USD) | Ranking Points |
| Winner | $136,760 | 500 |
| Finalist | $72,940 | 300 |
| Semifinalists | $36,900 | 180 |
| Quarterfinalists | $18,460 | 90 |
| Round of 16 | $9,550 | 0 |
Venue
Ariake Tennis Park, located in the Ariake district of Koto, Tokyo, is widely regarded as the “Holy Land of Tennis in Japan.” It’s a premier tennis facility that serves as the main venue for prestigious tournaments like the Japan Open Tennis Championships and the Toray Pan Pacific Open.
The park is an expansive complex featuring a total of 49 tennis courts, including 33 outdoor hard courts, 16 outdoor artificial grass courts with sand infill, and 8 indoor courts. The centerpiece of the park is the Ariake Colosseum, a state-of-the-art center court with a seating capacity of 10,000. It’s one of the few professional tennis venues worldwide to feature a retractable roof, which was installed in 1991, making it the first stadium in Japan to have such a feature.
In addition to the main colosseum, the park also includes a Show Court with a capacity of over 3,000 spectators. The venue underwent significant renovations for the Tokyo 2020 Summer Olympics and Paralympics, solidifying its status as a world-class tennis destination. When not hosting major events, many of the courts are open to the public for use.2“Ariake Tennis Park“. Wikipedia. Retrieved 11 August 2025.