The 27-year-old Austrian has not played since his Dubai opening-round defeat.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2015 |
Citi Open
|
Quarter Finals | John Isner |
3-6
7-5 3-6 |
| 2015 |
BB&T Atlanta Open
|
Quarter Finals | John Isner |
7-6
6-4 |
| 2013 |
US Men's Clay Court Championships
|
Quarter Finals | John Isner |
6-3
3-6 6-3 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Miami Open
|
1/8 | Roberto Bautista Agut |
3-6
6-4 6-7 |
| 2021 |
Miami Open
|
1/16 | John Isner |
6-7
6-7 |
| 2021 |
Miami Open
|
1/32 | John Isner |
6-2
3-6 5-7 |
| 2021 |
Mexican Open
|
1/8 | Stefanos Tsitsipas |
6-3
6-2 |
| 2021 |
Mexican Open
|
1/16 | John Isner |
6-4
6-3 |
| 2021 |
Delray Beach Open
|
Quarter Finals | Sebastian Korda |
6-3
4-6 6-3 |
| 2021 |
Delray Beach Open
|
1/8 | John Isner |
4-6
6-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Serbia Open
|
1/16 | Federico Delbonis |
4-6
6-3 1-6 |
| 2021 |
Andalucia Open
|
1/8 | Albert Ramos-Vinolas |
6-3
4-6 6-3 |
| 2021 |
Andalucia Open
|
1/16 | Richard Berankis |
4-6
7-6 5-7 |
| 2021 |
Miami Open
|
1/32 | Jan-Lennard Struff |
6-3
6-4 |
| 2021 |
Miami Open
|
1/64 | Richard Berankis |
6-7
2-6 |
