Istanbul challenger · ATP
Istanbul challenger 2023
ChallengerHardIstanbul, Türkiye3 September – 10 September 2023Prize money: 80,000 USD49 matchesAltitude: 32 mCourt: Medium
Champion Damir Dzumhur · Final: 7-5 6-4
Final rounds
| Final | Damir Dzumhur vs Lukas Klein | 7-6(5) 6-3 |
| Semifinal | Damir Dzumhur vs Nick Hardt | 6-4 6-3 |
| Semifinal | Lukas Klein vs Jesper De Jong | 7-6(2) 6-7(2) 7-6(5) |
| Quarterfinal | Damir Dzumhur vs Dino Prizmic | 6-3 6-7(3) 7-5 |
| Quarterfinal | Nick Hardt vs Altug Celikbilek | 1-6 7-6(5) 4-1 ret. |
| Quarterfinal | Lukas Klein vs Denis Yevseyev | 7-6(5) 6-7(3) 7-6(2) |
| Quarterfinal | Jesper De Jong vs Giovanni Mpetshi Perricard | 7-5 6-4 |
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