Tiburon challenger · ATP
Tiburon challenger 2025
ChallengerHardTiburon, United States28 September – 5 October 2025Prize money: 100,000 USD49 matchesAltitude: 4 mCourt: Slow
Champion Michael Zheng · Final: 6-4 6-2
Final rounds
| Final | Michael Zheng vs Tyler Zink | 6-4 6-4 |
| Semifinal | Michael Zheng vs Rafael Jodar | 6-4 7-5 |
| Semifinal | Tyler Zink vs Abedallah Shelbayh | 6-3 6-4 |
| Quarterfinal | Rafael Jodar vs Nicolas Mejia | 6-0 6-2 |
| Quarterfinal | Michael Zheng vs Mitchell Krueger | 7-5 6-3 |
| Quarterfinal | Tyler Zink vs Samir Banerjee | 6-4 1-6 6-3 |
| Quarterfinal | Abedallah Shelbayh vs Dmitry Popko | 6-4 6-2 |
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