| ITF USA F20 | 07/24 20:40 | 25 | Chang, Jonathan v 브룩스비, 젠슨 | 6-4,6-4 | |
| ITF USA F20 Qual | 07/23 16:50 | 62 | Chang, Jonathan v 코즈비노브, 알렉산더 | 6-3,6-2 | |
| ITF USA F20 Qual | 07/22 16:30 | 62 | Chang, Jonathan v Joshi, Abhijeet | 6-1,6-3 | |
| ITF USA F20 Qual | 07/21 15:00 | 62 | Chang, Jonathan v 존슨, 킬레 | 6-2,6-2 | |
| ITF USA F15 Qual | 06/16 15:30 | 62 | Chang, Jonathan v 스탈더, 리스 | 4-6,4-6 | |
| ITF USA F13 Qual | 06/10 14:00 | 62 | van Orderlain, Drew v Chang, Jonathan | 7-5,6-2 | |
| Irving, USA, Qualifying | 03/12 17:30 | 46 | 린더크네, 아서 v Chang, Jonathan | 6-1,6-4 | |
| ITF Canada F2 Qual | 03/04 15:00 | 44 | Baughman, Deiton v Chang, Jonathan | 6-1,6-1 | |
| ITF Canada F2 Qual | 03/03 15:00 | 44 | Chang, Jonathan v Zlobinsky, Julian | 6-4,3-6,3-6 | |
| ITF Canada F1 | 03/01 00:00 | 25 | Chang, Jonathan v Dancevic, Frank | 2-6,6-7 | |
| ITF Canada F1 Qual | 02/26 15:00 | 44 | 베르비크, 셈 v Chang, Jonathan | 5-7,6-3,4-6 | |
| ITF Canada F1 Qual | 02/25 15:00 | 44 | 왈드, 엠메트 v Chang, Jonathan | 2-6,4-6 | |
| ITF Germany F3 Qual | 01/28 13:00 | 54 | 왈테르슈에이드-투키크, 니콜라스 v Chang, Jonathan | 6-7,6-4,7-6 | |
| ITF Germany F2 Qual | 01/21 13:00 | 44 | 헤겔, 팀 v Chang, Jonathan | 7-6,6-4 | |
| ITF Germany F1 | 01/08 09:00 | 44 | Chang, Jonathan v 아이초른, 야코브 | 2-6,3-6 | |
| ITF Dominican Republic F2 | 12/03 15:00 | 62 | Chang, Jonathan v 우레아, 안드레스 | Retired | |
| ITF Dominican Republic F1 | 11/27 13:00 | 44 | Chang, Jonathan v 그레이프, 루카스 | 6-3,4-6,0-6 | |
| USA F37, Singles | 11/17 18:15 | 27 | Chang, Jonathan v 볼게스, 누노 | 2-6,2-6 | |
| USA F37, Singles | 11/16 16:00 | 26 | 아담스, 하리슨 v Chang, Jonathan | 0-6,3-6 | |
| USA F37, Singles | 11/14 17:50 | 25 | 차펠, 니크 v Chang, Jonathan | 6-3,4-6,3-6 | |
| ITF USA F36 | 11/04 16:30 | 60 | Chang, Jonathan v 주브, 파울 | 5-7,2-6 | |
| ITF USA F36 | 11/03 17:30 | 60 | 샤흐터, 노아 v Chang, Jonathan | 4-6,2-6 | |
| ITF USA F35 | 10/29 16:00 | 60 | Chang, Jonathan v 벨로브, 세르게이 | 3-6,2-6 | |
| ITF USA F34 Qual | 10/16 17:55 | 62 | 이노우에, 하루 v Chang, Jonathan | 4-6,6-4,6-3 | |
| ITF USA F34 Qual | 10/15 16:00 | 62 | 델리엔 벨라스코, 머켈 알레잔드로 v Chang, Jonathan | 3-6,6-7 | |
| ITF USA F34 Qual | 10/14 16:00 | 62 | 엠하드트, 찰리 v Chang, Jonathan | 2-6,3-6 | |
| USA F33, Singles | 10/11 19:35 | 25 | 바체로트, 발렌틴 v Chang, Jonathan | 6-2,6-7,6-4 | |
| ITF USA F33 Qual | 10/09 15:00 | 62 | Chang, Jonathan v 캔슬, 티바울트 | 6-4,6-2 | |
| ITF USA F33 Qual | 10/08 15:00 | 62 | 스트로드, 이사이아 v Chang, Jonathan | 1-6,2-6 | |
| ITF Canada F8 | 09/20 15:30 | 25 | 크라이니크, 파벨 v Chang, Jonathan | 6-2,6-1 |