Johnson and Sock survived five-set marathon matches on day one.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Istanbul Open
|
1/8 | Aliaksandra Sasnovich |
6-7
6-4 6-3 |
| 2020 |
Istanbul Open
|
1/16 | Anna Karolina Schmiedlova |
7-5
1-6 6-4 |
| 2020 |
Prague
|
Quarter Finals | Elisabetta Cocciaretto |
6-3
2-6 1-6 |
| 2020 |
Prague
|
1/8 | Anna Karolina Schmiedlova |
3-6
0-6 |
| 2020 |
Prague
|
1/32 | Anna Karolina Schmiedlova |
7-6
3-2 |
| 2020 |
Piestany Ladies Open
|
Final | Chantal Skamlova |
6-4
7-6 |
| 2020 |
Piestany Ladies Open
|
Semi Finals | Anna Karolina Schmiedlova |
0-6
1-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
US Open ATP
|
1/32 | Richard Berankis |
7-5
6-2 1-6 7-6 |
| 2020 |
US Open ATP
|
1/64 | Steve Johnson |
6-7
6-3 6-7 6-3 7-6 |
| 2020 |
Western & Southern Open, Qualification
|
1/24 (Special Qual) | Pedro Martinez Portero |
3-6
7-6 2-6 |
