Hamburg challenger · ATP
Hamburg challenger 2025
ChallengerHard indoorHamburg, Germany19 October – 26 October 2025Prize money: 54,000 EUR49 matchesAltitude: 11 mCourt: Fast
Champion Justin Engel · Final: 6-2 6-2
Final rounds
| Final | Justin Engel vs Federico Cina | 7-5 7-6(4) |
| Semifinal | Federico Cina vs George Loffhagen | 7-6(5) 6-4 |
| Semifinal | Justin Engel vs Alejandro Moro Canas | 7-6(3) 6-4 |
| Quarterfinal | Alejandro Moro Canas vs Buvaysar Gadamauri | 1-6 6-3 7-5 |
| Quarterfinal | Justin Engel vs Matej Dodig | 4-6 7-6(4) 7-6(5) |
| Quarterfinal | George Loffhagen vs Henri Squire | 6-4 7-6(5) |
| Quarterfinal | Federico Cina vs Tom Gentzsch | 6-2 6-2 |
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