| ITF USA F14 | 04/16 13:00 | 60 | Chang, Jonathan v Rocha, Juan | 6-3,6-2 | |
| ITF USA F12 Qual | 04/03 15:00 | 62 | Kekercheni, Filipp v Chang, Jonathan | 6-3,6-2 | |
| ITF USA F12 Qual | 04/02 14:00 | 62 | Haworth, Christopher G v Chang, Jonathan | 6-7,3-6 | |
| Irving, USA, Qualifying | 03/13 16:15 | 45 | 쿠들라, 다니스 v Chang, Jonathan | 6-3,6-0 | |
| Canada F2, Singles | 03/07 17:55 | 25 | 발르레레, 그레고일 v Chang, Jonathan | 4-6,6-1,6-2 | |
| ITF Canada F2 Qual | 03/06 14:30 | 44 | Arvidsson, Isak v Chang, Jonathan | 3-6,6-4,7-5 | |
| ITF Canada F2 Qual | 03/05 14:30 | 44 | van Orderlain, Drew v Chang, Jonathan | 2-6,3-6 | |
| ITF Canada F1 | 02/28 15:00 | 25 | Chang, Jonathan v 베가, 퀸톤 | 6-2,6-7,5-7 | |
| ITF Canada F1 Qual | 02/27 19:00 | 44 | 블루멘버그, 알렉스 v Chang, Jonathan | Retired | |
| ITF Canada F1 Qual | 02/26 19:00 | 44 | 황, 치치 v Chang, Jonathan | 2-6,3-6 | |
| Tempe, USA, Qualifying | 02/11 20:00 | 45 | 바리오스 베라, 마르셀로 토마스 v Chang, Jonathan | 6-3,6-1 | |
| Challenger Dallas Qual | 01/28 18:15 | 45 | 레날드, 루카스 v Chang, Jonathan | 6-3,3-6,6-3 | |
| ITF USA F5 | 01/20 17:30 | 60 | 키르코브, 바실 v Chang, Jonathan | 7-6,6-2 | |
| ITF USA F4 | 01/14 22:00 | 60 | 오거 알리아심, 펠릭스 v Chang, Jonathan | 6-4,7-6 | |
| ITF USA F4 | 01/13 13:30 | 60 | 존슨, 잔마그누스 v Chang, Jonathan | 5-7,0-6 | |
| ITF USA F3 | 01/08 17:30 | 60 | Chang, Jonathan v 코헨, 알란 | 0-6,6-3,5-7 | |
| ITF USA F39 Qual | 11/28 18:05 | 62 | 라몬스, 나다니엘 v Chang, Jonathan | 6-7,6-4,6-2 | |
| USA F37, Singles | 11/15 19:10 | 25 | 다시에크, 패트릭 v Chang, Jonathan | 6-4,6-2 | |
| ITF USA F32 | 10/20 18:30 | 26 | Chang, Jonathan v 로크, 벤자민 | 2-6,2-6 | |
| ITF USA F31 Qual | 10/08 17:00 | 62 | Chang, Jonathan v 라키치, 스트라힌자 | 6-3,3-6,3-6 | |
| ITF Canada F8 Qual | 09/11 13:00 | 44 | Chang, Jonathan v 바이벨, 니콜라스 | Retired | |
| Canada F7, Singles | 09/09 16:00 | 27 | 리츠찰드, 알렉산더 v Chang, Jonathan | 6-1,6-0 | |
| Canada F7, Singles | 09/08 16:00 | 26 | 베란, 마르틴 v Chang, Jonathan | 5-7,2-6 | |
| Canada F7, Singles | 09/06 14:30 | 25 | Chang, Jonathan v 우치다, 카이치 | 6-4,3-6,6-2 | |
| ITF Canada F7 Qual | 09/05 16:00 | 44 | Chang, Jonathan v 무암바, 니케즈 | 6-4,6-1 | |
| ITF Canada F7 Qual | 09/04 14:00 | 44 | Chang, Jonathan v 황, 치치 | 6-2,6-0 | |
| ITF Canada F6 | 08/31 18:10 | 26 | 펠리워, 필리프 v Chang, Jonathan | 6-2,6-4 | |
| ITF Canada F6 | 08/29 16:00 | 25 | Genender, Michael v Chang, Jonathan | 3-6,4-6 | |
| ITF USA F25 Qual | 07/24 13:15 | 62 | Chang, Jonathan v Bandres, Jesus | Retired | |
| ITF USA F25 Qual | 07/23 15:00 | 62 | Woog, Jarryd v Chang, Jonathan | 4-6,1-6 |