Marcos Giron leads 2 to 1 over 3 singles meetings since 2025. Last meeting on 16/03/2026 at Phoenix Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 16/03/2026 | Phoenix Challenger | Final | hard | Quinn | 7-6(1) 4-6 7-5 |
| 17/09/2025 | Chengdu Open - Chengdu | Round 1 | hard | Giron | 7-5 6-4 |
| 12/02/2025 | Delray Beach Open - Delray Beach | Round 2 | hard | Giron | 6-3 6-4 |
| hard | Giron 2 - 1 Quinn |
| 2026 | Giron 0 - 1 Quinn |
| 2025 | Giron 2 - 0 Quinn |
152 wins, 161 losses since 2021 (48.6%).
Last matches: D V V D D
150 wins, 108 losses since 2021 (58.1%).
Last matches: D V D V V
Marcos Giron leads 2 to 1 over 3 singles meetings since 2025.
On 16/03/2026, at Phoenix Challenger (Final): Ethan Quinn won 7-6(1) 4-6 7-5.