Round: 54 Ground: Clay
| ITF Croatia F3 | 2018/03/19 14:00 | Sabanov, Ivan v Thiem, Moritz | 6-2,6-0 |
| ITF Croatia F3 | 2018/03/19 11:00 | Thiem, Moritz v Di Maro, Lorenzo | 6-2,6-4 |
| Turkey F8, Singles Qualifying | 2018/02/25 07:30 | Thiem, Moritz v Barranco, Sergio | 3-6,4-6 |
| Turkey F8, Singles Qualifying | 2018/02/24 07:00 | Thiem, Moritz v Matsuzaki, Yutaro | 6-7,6-2,6-4 |
| ITF Turkey F7 | 2018/02/21 13:40 | Thiem, Moritz v Appelgren, Daniel | 4-6,0-6 |
| Turkey F6, Singles Qualifying | 2018/02/10 06:00 | Thiem, Moritz v Jacopo Berrettini | 1-6,1-6 |
| ITF Turkey F13 | 2017/04/01 07:00 | Koray Kirci v Thiem, Moritz | 2-6,6-4,6-2 |
| Turkey F14, Singles Qualifying | 2016/04/02 06:30 | Ridout, Robbie v Thiem, Moritz | 6-4,6-3 |