Sevastova had 30 winners and 28 unforced errors as she won her third singles title.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Szczecin
|
Semi Finals | Guido Andreozzi |
3-6
7-6 6-4 |
| 2018 |
Szczecin
|
Quarter Finals | Guido Andreozzi |
5-7
6-1 1-6 |
| 2018 |
Szczecin
|
1/16 | Guido Andreozzi |
4-6
2-6 |
| 2018 |
US Open ATP
|
1/64 | Jack Sock |
6-0
7-6 6-2 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Coupe Banque Nationale
|
Quarter Finals | Jessica Pegula |
6-3
7-5 |
| 2018 |
Coupe Banque Nationale
|
1/8 | Petra Martic |
0-6
2-6 |
| 2018 |
Coupe Banque Nationale
|
1/16 | Petra Martic |
1-6
1-6 |
| 2018 |
Chicago
|
Final | Petra Martic |
4-6
1-6 |
| 2018 |
Chicago
|
Semi Finals | Petra Martic |
1-6
2-6 |
| 2018 |
Chicago
|
Quarter Finals | Petra Martic |
5-7
6-7 |
| 2018 |
Chicago
|
1/8 | Petra Martic |
4-6
2-6 |
| 2018 |
Chicago
|
1/16 | Petra Martic |
1-6
3-6 |
| 2018 |
US Open WTA
|
1/64 | Lucie Safarova |
4-6
4-6 |
