| 7‑May‑2018 | Madrid Masters | Clay | R64 | 65 | 92 | Struff d. (Q)Marius Copil [ROU] | 6-4 6-4 | | 1.91 | 7.4% | 5.6% | 57.4% | 87.1% | 69.6% | 1/1 | 1:06 |
| 16‑Oct‑2017 | Stockholm | Hard | R32 | 49 | 74 | Struff d. Marius Copil [ROU] | 6-7(2) 6-4 7-6(12) | | 1.00 | 13.8% | 3.7% | 68.8% | 76.0% | 64.7% | 3/5 | 2:11 |
| 27‑Feb‑2017 | Dubai | Hard | R32 | 59 | 124 | (Q)Marius Copil [ROU] d. Struff | 6-4 6-2 | | 0.63 | 7.9% | 6.6% | 61.8% | 70.2% | 27.6% | 9/13 | 1:07 |
| 13‑Feb‑2017 | Rotterdam | Hard | Q2 | 58 | 130 | Marius Copil [ROU] d. (1)Struff | 6-3 6-4 | | 0.67 | 9.4% | 3.8% | 62.3% | 72.7% | 50.0% | 3/5 | 1:02 |
| 9‑Nov‑2015 | Bratislava CH | Hard | R16 | 102 | 176 | Marius Copil [ROU] d. (3)Struff | 6-4 6-3 | | 0.49 | 7.7% | 4.6% | 58.5% | 71.1% | 44.4% | 5/8 | |
| 28‑Oct‑2013 | Geneva CH | Hard | SF | 114 | 145 | (7)Struff d. Marius Copil [ROU] | 6-4 6-1 | | 1.39 | 7.3% | 10.9% | 45.5% | 84.0% | 50.0% | 2/3 | 1:05 |
| 20‑Mar‑2013 | Miami Masters | Hard | Q2 | 116 | 144 | Marius Copil [ROU] d. (19)Struff | 7-5 6-4 | | 0.74 | 3.2% | 4.8% | 56.5% | 65.7% | 59.3% | 1/4 | 1:22 |
