Stadium: Court 5 Round: 25 Ground: Clay
| Vero Beach, Fl, Singles Qualifying M-ITF-USA-17A | 2021/10/19 16:00 | de Rossi, Marco v Johnson, Janmagnus | 2-6,1-6 |
| Vero Beach, Fl, Singles Qualifying M-ITF-USA-17A | 2021/10/18 16:00 | Kyle Overmyer v Johnson, Janmagnus | 1-6,0-6 |
| UTR Pro Tennis Series Florida | 2021/01/15 15:30 | Mei, Mesa v Johnson, Janmagnus | 6-1,3-6,5-3 |
| UTR Pro Tennis Series Florida | 2021/01/14 16:00 | Johnson, Janmagnus v Scott, Fletcher | 3-6,6-1,6-2 |
| UTR Pro Tennis Series Florida | 2021/01/11 20:00 | Johnson, Janmagnus v Bruno Kuzuhara | 6-4,4-6,6-7 |
| UTR Pro Tennis Series Florida | 2021/01/10 18:00 | Johnson, Janmagnus v Zlobinsky, Julian | 6-2,5-0 |
| UTR Pro Tennis Series Florida | 2020/12/17 18:00 | Johnson, Janmagnus v Cannon Kingsley | 5-7,4-6 |
| UTR Pro Tennis Series Florida | 2020/12/16 16:00 | Nick Chappell v Johnson, Janmagnus | 2-6,7-6,3-6 |
| ITF M15 Naples | 2021/10/14 16:40 | Ezekiel Clark v Abedallah Shelbayh | 7-5,4-6,4-6 |
| ITF M15 Naples | 2021/10/13 13:30 | Ezekiel Clark v Kohen, Alan | 6-7,6-3,6-3 |
| ITF M15 Fayetteville | 2021/09/21 17:00 | Kodat, Toby Alex v Ezekiel Clark | 6-2,3-6,6-3 |
| ITF M15 Champaign | 2021/09/15 15:00 | Cannon Kingsley v Ezekiel Clark | 6-3,6-2 |
| ITF - M15 Monastir | 2021/09/10 07:55 | Beale, Jeremy v Ezekiel Clark | 6-3,3-6,7-6 |
| ITF - M15 Monastir | 2021/09/09 08:00 | Ezekiel Clark v Terence Atmane | 6-4,7-6 |
| ITF - M15 Monastir | 2021/09/07 09:30 | Max Alcala Gurri v Ezekiel Clark | 1-6,6-3,3-6 |
| ITF - M15 Monastir | 2021/09/01 09:30 | Seelig, Kyle v Ezekiel Clark | 6-0,6-4 |