The American is eager to prove that he can climb back up the rankings once again.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2016 |
Citi Open
United States, District of Columbia, Washington |
Quarter Finals | Ivo Karlovic |
7-6
7-6 |
| 2015 |
Campbell's Hall of Fame Tennis Championships
|
Semi Finals | Ivo Karlovic |
6-7
4-6 |
| 2014 |
US Men's Clay Court Championships
United States, Texas, Houston |
1/16 | Jack Sock |
6-1
6-4 |
| 2014 |
U.S. National Indoor Tennis Championships
United States, Tennessee, Memphis |
Quarter Finals | Ivo Karlovic |
6-7
7-6 3-6 |
| 2013 |
BNP Paribas Open
|
1/64 | Ivo Karlovic |
6-3
6-7 2-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2019 |
Laver Cup
|
Championship | Jack Sock |
1-6
6-7 |
| 2019 |
US Open ATP
|
1/64 | Pablo Cuevas |
4-6
5-7 6-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 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 |
