Stadium: Tennis King 3 Round: 44 Ground: Carpet indoor
| ITF Dominican Republic F1 | 2017/11/27 13:00 | Jonathan Chang v Lukas Greif | 6-3,4-6,0-6 |
| ITF USA F37 | 2017/11/17 18:15 | Jonathan Chang v Nuno Borges | 2-6,2-6 |
| ITF USA F37 | 2017/11/16 16:00 | Harrison Adams v Jonathan Chang | 0-6,3-6 |
| ITF USA F37 | 2017/11/14 17:50 | Nick Chappell v Jonathan Chang | 6-3,4-6,3-6 |
| ITF USA F36 | 2017/11/04 16:30 | Jonathan Chang v Paul Jubb | 5-7,2-6 |
| ITF USA F36 | 2017/11/03 17:30 | Noah Schachter v Jonathan Chang | 4-6,2-6 |
| ITF USA F35 | 2017/10/29 16:00 | Jonathan Chang v Sergey Belov | 3-6,2-6 |
| ITF USA F34 Qual | 2017/10/16 17:55 | Haru Inoue v Jonathan Chang | 4-6,6-4,6-3 |
| ITF Germany F1 | 2018/01/07 08:00 | Jakob Aichhorn v James Markiewicz | 6-4,6-2 |
| ITF Italy F28 Qual | 2017/09/02 15:55 | Tommaso Schold v Jakob Aichhorn | 2-6,7-6,6-2 |
| ITF Germany F12 | 2017/08/20 08:00 | Jakob Aichhorn v Rene Schulte | 2-6,3-6 |
| ITF Germany F11 | 2017/08/14 11:30 | Jakob Aichhorn v Daniel Kopeinigg | 6-7,7-5,5-7 |
| ITF Germany F11 | 2017/08/13 13:00 | Jakob Aichhorn v Tim Seibert | 6-4,6-7,6-1 |
| ITF Austria F6 | 2017/08/08 08:00 | Jakob Aichhorn v Alessandro Ceppellini | 1-6,7-6,1-6 |
| ITF Austria F5 | 2017/07/30 08:00 | Matthias Haim v Jakob Aichhorn | 1-6,7-6,7-6 |
| ITF Austria F5 | 2017/07/29 08:00 | Mateo Bubalo v Jakob Aichhorn | 0-6,0-6 |