The 2017 US Open champion also lost to Vekic in the first round of Wimbledon.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Biella
|
1/16 | Roberto Carballes Baena |
6-3
6-4 |
| 2018 |
Szczecin
|
1/8 | Facundo Arguello |
7-6
6-3 |
| 2018 |
Szczecin
|
1/16 | Roberto Carballes Baena |
6-7
6-7 |
| 2018 |
US Open ATP
|
1/32 | Borna Coric |
7-6
6-2 6-3 |
| 2018 |
US Open ATP
|
1/64 | Roberto Carballes Baena |
3-6
6-2 6-4 7-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Pan Pacific Open
|
1/16 | Donna Vekic |
4-6
4-6 |
| 2018 |
US Open WTA
|
Quarter Finals | Anastasija Sevastova |
2-6
3-6 |
| 2018 |
US Open WTA
|
1/8 | Sloane Stephens |
6-3
6-3 |
| 2018 |
US Open WTA
|
1/16 | Sloane Stephens |
6-3
6-4 |
| 2018 |
US Open WTA
|
1/32 | Sloane Stephens |
4-6
7-5 6-2 |
| 2018 |
US Open WTA
|
1/64 | Sloane Stephens |
6-1
7-5 |
| 2018 |
Western & Southern Open
|
1/8 | Elise Mertens |
7-6
6-2 |
| 2018 |
Western & Southern Open
|
1/16 | Sloane Stephens |
3-6
2-6 |
