Johnson and Sock survived five-set marathon matches on day one.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2016 |
Brisbane International
|
1/16 | Viktor Troicki |
7-6
6-1 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Roland Garros, Qualification ATP
|
1/64 | Frederico Ferreira Silva |
0-6
2-6 |
| 2020 |
Ostrava
|
1/8 | Ilya Ivashka |
3-6
5-7 |
| 2020 |
Eastern European Championship
|
Championship | Richard Berankis |
6-3
6-3 |
| 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 |
