Johnson cramped up in the third set, but fought his way past Thomaz Bellucci.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2017 |
Dubai Duty Free Tennis Championships, Qualification
|
1/16 | Patricia Maria Tig |
0-3
|
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Delray Beach Open
|
1/16 | Thiago Monteiro |
3-6
5-7 |
| 2020 |
Campinas
|
1/8 | Mohamed Safwat |
6-2
4-6 3-6 |
| 2020 |
Sao Paulo
|
1/8 | Frederico Ferreira Silva |
6-3
6-1 |
| 2020 |
Sao Paulo
|
1/16 | Thomaz Bellucci |
6-2
6-0 |
