| 8‑Apr‑2024 | Sarasota CH | Clay | R32 | 594 | 162 | (Q)Kozlov d. (8)Denis Kudla [USA] | 6-2 4-6 6-2 | | 1.35 | 3.8% | 3.8% | 68.4% | 68.5% | 52.0% | 6/9 | 2:39 |
| 10‑Jan‑2022 | Sydney | Hard | Q1 | 168 | 109 | (8)Denis Kudla [USA] d. Kozlov | 4-6 7-6(7) 6-3 | | 0.88 | 5.6% | 5.6% | 68.3% | 61.9% | 37.8% | 14/19 | 3:08 |
| 11‑Nov‑2019 | Champaign-Urbana CH | Hard | R32 | 473 | 115 | Kozlov d. (1)Denis Kudla [USA] | 6-3 6-3 | | 2.04 | 13.3% | 0.0% | 80.0% | 77.8% | 88.9% | 0/0 | 1:09 |
| 30‑Oct‑2017 | Charlottesville CH | Hard | QF | 135 | 206 | (6)Kozlov d. Denis Kudla [USA] | 6-4 6-3 | | 1.40 | 7.1% | 1.8% | 66.1% | 75.7% | 42.1% | 2/4 | 1:17 |
| 2‑Oct‑2017 | Stockton CH | Hard | R16 | 144 | 166 | (4)Kozlov d. (WC)Denis Kudla [USA] | 6-4 6-4 | | 1.26 | 3.1% | 6.2% | 69.2% | 75.6% | 65.0% | 6/6 | 1:27 |
| 30‑May‑2016 | Manchester CH | Grass | R16 | 213 | 53 | (1)Denis Kudla [USA] d. Kozlov | 6-4 6-3 | | 0.64 | 5.9% | 1.5% | 58.8% | 67.5% | 42.9% | 8/11 | 1:18 |
