Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| Challenger Newport Beach | 2020/01/30 18:00 | Aleksandar Vukic v Steve Johnson | 6-7,7-6,6-7 |
| ATP San Diego | 2021/09/25 18:30 | Steve Johnson v Federico Gaio | 6-3,6-7,3-6 |
| US Open | 2021/09/02 19:05 | Gael Monfils v Steve Johnson | 7-5,4-6,6-4,6-4 |
| US Open | 2021/08/31 19:55 | Steve Johnson v Maximilian Marterer | 5-7,7-6,7-6,6-3 |
| ATP Winston-Salem | 2021/08/23 23:35 | Steve Johnson v Alexei Popyrin | 5-7,4-6 |
| ATP Cincinnati | 2021/08/15 15:00 | Kevin Anderson v Steve Johnson | 7-6,6-4 |
| ATP Cincinnati | 2021/08/14 16:00 | Steve Johnson v Emil Ruusuvuori | 6-7,6-2,6-3 |
| ATP Washington | 2021/08/06 19:25 | Jannik Sinner v Steve Johnson | 6-4,6-2 |
| ATP Washington | 2021/08/05 18:00 | Ricardas Berankis v Steve Johnson | 2-6,1-6 |
| Challenger Columbus | 2021/09/25 18:25 | Aleksandar Vukic v Max Purcell | 6-7,6-7 |
| Challenger Columbus | 2021/09/24 17:45 | Aleksandar Vukic v Alex Bolt | 7-5,6-4 |
| Challenger Columbus | 2021/09/22 17:50 | Aleksandar Vukic v Cannon Kingsley | 7-6,7-5 |
| Challenger Columbus | 2021/09/21 22:40 | Ernesto Escobedo v Aleksandar Vukic | 4-6,5-7 |
| Challenger Cary | 2021/09/19 00:20 | Bjorn Fratangelo v Aleksandar Vukic | 6-7,7-6,6-2 |
| Challenger Cary | 2021/09/17 20:20 | Aleksandar Vukic v Zachary Svajda | 3-6,6-2,6-3 |
| Challenger Cary | 2021/09/15 17:00 | Salvatore Caruso v Aleksandar Vukic | 2-6,4-6 |
| Challenger Cary | 2021/09/13 19:15 | Michael Redlicki v Aleksandar Vukic | 4-6,4-6 |