Stadium: Ct B Round: 62 Ground: Hardcourt outdoor
| ITF Australia F6 | 2018/09/23 03:30 | Dane Sweeny v Johnson, Connor | 6-3,6-4 |
| ITF Tunisia F21 | 2018/05/26 09:00 | Meyer, Mark Stewart v Johnson, Connor | 6-4,1-6,6-4 |
| ITF Tunisia F20 | 2018/05/19 09:00 | Johnson, Connor v Ren Nakamura | 1-6,3-6 |
| ITF Romania F3 | 2017/06/10 11:00 | Ghilea, Vasile-Alexandru v Johnson, Connor | 6-2,6-1 |
| ITF Bosnia and Herzegovina F3 | 2017/06/04 08:00 | Bonetta, Dino v Johnson, Connor | 6-1,6-1 |
| ITF Bosnia and Herzegovina F1 | 2017/05/21 07:00 | Bosnjak, Mislav v Johnson, Connor | 6-0,6-4 |
| ITF Australia F1 Qual | 2017/03/03 23:00 | Johnson, Connor v Smith, Cameron Edward | 2-6,0-6 |
| ITF Australia F10 Qual | 2016/11/12 23:00 | Drzewiecki, Karol v Johnson, Connor | 6-1,3-6,6-3 |
| ITF Australia F6 | 2018/09/24 03:35 | Ma, William v Corey Gaal | 7-5,2-6,2-6 |
| ITF Australia F6 | 2018/09/23 00:30 | Ma, William v Mendez, Matthew | 6-2,6-0 |
| ITF Australia F5 | 2018/09/16 05:00 | Ma, William v Dawes, Glen | 6-7,7-6,6-7 |
| ITF Australia F5 | 2018/09/15 00:30 | Ma, William v Hoskins, Sam | 6-0,6-0 |
| ITF Korea F6 | 2018/08/28 02:00 | Ma, William v Oh, Seong-Gook | 6-4,2-6,0-6 |
| ITF Korea F5 | 2018/08/19 02:00 | Ma, William v Lee, Seounghun | 6-3,4-6,3-6 |
| ITF Korea F5 | 2018/08/18 01:00 | Ma, William v Kim, Hangyeom | 6-3,6-3 |
| ITF Korea F4 | 2018/08/13 03:00 | Park, Minjong v Ma, William | 6-3,6-1 |