Stadium: C3 Round: 45
| ITF Germany F13 | 2018/08/22 14:30 | Jonas Trinker v Louis Wessels | 6-7,2-6 |
| ITF Austria F6 | 2018/08/09 09:00 | Jonas Trinker v Yuta Shimizu | 3-6,0-6 |
| ITF Austria F6 | 2018/08/08 11:35 | Skander Mansouri v Jonas Trinker | 6-3,3-6,1-6 |
| ITF Austria F6 | 2018/08/06 13:55 | Jonas Trinker v Edoardo Sardella | 7-6,7-6 |
| ITF Austria F5 | 2018/08/04 11:05 | Takuto Niki v Jonas Trinker | 7-6,3-6,6-1 |
| ITF Austria F5 | 2018/08/03 10:30 | Jonas Trinker v Tomislav Jotovski | 3-6,6-2,7-6 |
| ITF Austria F5 | 2018/08/02 08:00 | Nerman Fatic v Jonas Trinker | 4-6,7-6,4-6 |
| ITF Austria F5 | 2018/07/31 11:05 | Stefano Battaglino v Jonas Trinker | 2-6,2-6 |