Chicago challenger · ATP
Chicago challenger 2023
ChallengerHardChicago, United States9 July – 16 July 2023Prize money: 80,000 USD49 matchesAltitude: 179 mCourt: Medium-fast
Champion Alex Michelsen · Final: 6-2 7-5
Final rounds
| Final | Alex Michelsen vs Yuta Shimizu | 7-5 6-2 |
| Semifinal | Alex Michelsen vs Juncheng Shang | 4-6 7-5 6-3 |
| Semifinal | Yuta Shimizu vs Giovanni Mpetshi Perricard | 7-6(5) 7-6(5) |
| Quarterfinal | Juncheng Shang vs Ethan Quinn | 7-5 6-1 |
| Quarterfinal | Giovanni Mpetshi Perricard vs Mark Lajal | 7-6(3) 4-6 7-6(6) |
| Quarterfinal | Alex Michelsen vs Kei Nishikori | 7-6(13) 3-6 6-1 |
| Quarterfinal | Yuta Shimizu vs Jason Jung | 6-2 7-5 |
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