Hamburg challenger · ATP
Hamburg challenger 2023
ChallengerHard indoorHamburg, Germany15 October – 22 October 2023Prize money: 36,000 EUR49 matchesAltitude: 11 mCourt: Medium-slow
Champion Illya Marchenko · Final: 4-6 6-0 6-2
Final rounds
| Final | Illya Marchenko vs Dennis Novak | 6-2 6-3 |
| Semifinal | Illya Marchenko vs Billy Harris | 7-5 3-6 7-5 |
| Semifinal | Dennis Novak vs Tristan Lamasine | 4-6 6-3 6-4 |
| Quarterfinal | Dennis Novak vs Javier Barranco Cosano | 6-2 6-2 |
| Quarterfinal | Tristan Lamasine vs Akira Santillan | 6-4 6-2 |
| Quarterfinal | Illya Marchenko vs Adam Walton | 6-4 6-1 |
| Quarterfinal | Billy Harris vs Mate Valkusz | 4-6 6-0 6-2 |
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