| UTR Pro Tennis Series Texas | 2022/08/23 16:00 | Alex Koong v Aron Pierce | 6-7,6-2,3-5 |
| UTR Pro Tennis Series Texas | 2022/08/22 17:00 | Stefan Storch v Alex Koong | 4-6,0-5 |
| UTR Pro Tennis Series Texas | 2022/08/18 19:30 | Hiroki Sakagawa v Alex Koong | 6-2,5-2 |
| UTR Pro Tennis Series Texas | 2022/08/17 17:41 | Antonio M-Hidalgo v Alex Koong | 6-2,2-6,4-5 |
| UTR Pro Tennis Series Texas | 2022/08/16 21:32 | Marcus Walters v Alex Koong | 6-1,6-1 |
| UTR Pro Tennis Series Texas | 2022/08/15 19:30 | James Hopper v Alex Koong | 6-3,6-1 |
| UTR Pro Tennis Series Texas | 2022/08/14 20:00 | Alex Koong v Blaine Hovenier | 6-2,5-3 |
| UTR Pro Tennis Series Texas | 2022/08/22 18:30 | JC Roddick v Jonathan Chang | 6-4,5-1 |
| ITF USA F33 | 2018/11/22 16:45 | Jonathan Chang v Andrew Watson | 4-6,6-7 |
| ITF USA F33 | 2018/11/21 18:20 | Jonathan Chang v Cannon Kingsley | 3-6,6-1,7-5 |
| ITF USA F33 | 2018/11/20 15:00 | Ronnie Schneider v Jonathan Chang | 4-6,6-4,2-6 |
| Challenger Houston | 2018/11/10 15:00 | Alejandro Gonzalez v Jonathan Chang | 6-2,6-3 |
| ITF USA F28B | 2018/10/26 17:40 | Roy Smith v Jonathan Chang | 6-2,6-2 |
| ITF USA F28B | 2018/10/25 21:15 | Jonathan Chang v Jack Findel-Hawkins | 4-6,6-4,7-6 |
| ITF USA F28B | 2018/10/25 16:00 | Michael Redlicki v Jonathan Chang | 4-6,1-6 |