| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2019 |
US Men's Clay Court Championships
|
1/16 | Ryan Harrison |
6-3
6-4 |
| 2018 |
New York Open
|
1/8 | Ivo Karlovic |
4-6
4-6 |
| 2015 |
Abierto Mexicano Telcel
|
Quarter Finals | Ryan Harrison |
6-4
6-7 6-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2019 |
US Open, Qualification ATP
|
1/64 | Dominik Koepfer |
6-1
6-1 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2019 |
VTB Kremlin Cup
|
1/16 | Ivo Karlovic |
6-4
6-7 7-6 |
| 2019 |
US Open ATP
|
1/64 | Frances Tiafoe |
2-6
3-6 2-1 |
| 2019 |
Western & Southern Open
|
1/32 | Jan-Lennard Struff |
5-7
6-7 |
