Japan Open · ATP
Japan Open 2025
ATP 500HardTokyo, Japan22 September – 30 September 2025Prize money: 2,226,470 USD43 matchesAltitude: 40 mCourt: Medium-fast
Champion Carlos Alcaraz · Final: 6-3 6-7(5) 6-3
Final rounds
| Final | Carlos Alcaraz vs Taylor Fritz | 6-4 6-4 |
| Semifinal | Carlos Alcaraz vs Casper Ruud | 3-6 6-3 6-4 |
| Semifinal | Taylor Fritz vs Jenson Brooksby | 6-4 6-3 |
| Quarterfinal | Carlos Alcaraz vs Brandon Nakashima | 6-2 6-4 |
| Quarterfinal | Casper Ruud vs Aleksandar Vukic | 6-3 6-2 |
| Quarterfinal | Jenson Brooksby vs Holger Rune | 6-3 6-3 |
| Quarterfinal | Taylor Fritz vs Sebastian Korda | 6-3 6-7(5) 6-3 |
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