The defending champion "escaped tough situations" in a gripping third-round slugfest.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
St. Petersburg Open
|
1/8 | Stan Wawrinka |
7-6
7-6 |
| 2018 |
Davis Cup Group 1 - Europe/Africa Playoff
|
Championship | Karen Khachanov |
6-2
6-4 |
| 2018 |
Davis Cup Group 1 - Europe/Africa Playoff
|
Championship | Karen Khachanov |
7-6
6-3 |
| 2018 |
US Open ATP
|
1/16 | Rafael Nadal |
5-7
7-5 7-6 7-6 |
| 2018 |
US Open ATP
|
1/32 | Karen Khachanov |
5-7
3-6 3-6 |
| 2018 |
US Open ATP
|
1/64 | Karen Khachanov |
3-6
2-6 3-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2017 |
Australian Open, Qualification WTA
|
1/48 (Special Qual) | Tatjana Maria |
6-1
6-2 |
| 2016 |
Brisbane International, Qualification
|
1/16 | Sachia Vickery |
6-2
3-6 2-6 |
