Wawrinka was the 2015 French Open champion, and was the runner-up in 2017.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
US Open ATP
|
Championship | ||
| 2017 |
Como
|
1/16 | Guillermo Garcia-Lopez |
7-6
3-0 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Open de Moselle
|
1/16 | Matthias Bachinger |
4-6
4-6 |
| 2018 |
US Open ATP
|
1/32 | Diego Schwartzman |
6-2
6-0 5-7 6-2 |
| 2018 |
US Open ATP
|
1/64 | Jaume Munar |
7-5
3-6 6-7 6-2 1-6 |
| 2018 |
Winston-Salem Open
|
1/8 | Steve Johnson |
6-4
6-4 |
| 2018 |
Winston-Salem Open
|
1/16 | Jaume Munar |
6-3
6-2 |
| 2018 |
Winston-Salem Open
|
1/32 | Jaume Munar |
6-7
6-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
St. Petersburg Open
|
1/16 | Matteo Berrettini |
6-7
6-2 3-6 |
| 2018 |
Winston-Salem Open
|
1/16 | Hyeon Chung |
7-6
6-2 |
| 2018 |
Winston-Salem Open
|
1/32 | Guillermo Garcia-Lopez |
6-7
4-6 |
