Stadium: Center Court 1 Round: 14 Ground: Hardcourt outdoor
| UTR Pro Tennis Series Ann Arbor | 2022/07/29 17:00 | Jacob Bickersteth v Mercer, J | 6-0,4-6,6-4 |
| UTR Pro Tennis Series Ann Arbor | 2022/07/27 17:30 | Mercer, J v Jacob Perkins | 6-0,6-2 |
| UTR Pro Tennis Series Ann Arbor | 2022/07/25 17:00 | Mercer, J v Shourya Verma | 3-6,6-3,6-3 |
| UTR Pro Tennis Series Ann Arbor | 2022/07/24 18:30 | Luke Baylis v Mercer, J | 4-6,3-5 |
| ITF M15 Pittsburgh | 2022/07/12 14:00 | Lakoseljac, Christian v Mercer, J | 6-3,6-2 |
| ITF M15 South Bend | 2022/06/21 12:30 | Presley Thieneman v Mercer, J | 6-3,6-4 |
| UTR Pro Tennis Series Florida | 2021/12/15 15:30 | Matthew Segura v Mercer, J | 6-1,6-3 |
| UTR Pro Tennis Series Florida | 2021/12/13 17:00 | Mitsui, Shunsuke v Mercer, J | 6-1,6-0 |
| Challenger Winnipeg | 2022/07/29 23:35 | Alafia Ayeni v Evan Zhu | 6-4,3-6,4-6 |
| Challenger Winnipeg | 2022/07/28 17:25 | Alafia Ayeni v Kyle Edmund | 7-6,6-2 |
| Challenger Winnipeg | 2022/07/26 19:15 | Michael Mmoh v Alafia Ayeni | 4-6,4-6 |
| Challenger Winnipeg | 2022/07/25 16:55 | Pervolarakis, Michail v Alafia Ayeni | 5-7,5-7 |
| Nur Sultan, Kazakhstan | 2022/07/21 07:40 | Roman Safiullin v Alafia Ayeni | 6-2,6-4 |
| Nur Sultan, Kazakhstan | 2022/07/19 08:50 | Alafia Ayeni v Tashbulatov, Dostanbek | 6-1,6-0 |
| Nur Sultan, Kazakhstan | 2022/07/18 10:50 | Noskin, Egor v Alafia Ayeni | 7-5,1-6,0-6 |
| Nur Sultan, Kazakhstan | 2022/07/17 09:00 | Saar, Karl Kiur v Alafia Ayeni | 7-5,6-7,4-6 |