| ITF Croatia F1 | 2018/03/04 09:00 | Gorazd Srbljak v Mateo Bubalo | 7-5,6-3 |
| ITF Austria F5 | 2017/07/29 08:00 | Mateo Bubalo v Jakob Aichhorn | 0-6,0-6 |
| ITF Croatia F1 | 2017/03/05 08:00 | Mateo Bubalo v Patrick Grigoriu | 2-6,1-6 |
| ITF Croatia F1 | 2017/03/04 08:00 | George Kennedy v Mateo Bubalo | 4-6,1-6 |
| ITF Croatia F1 | 2016/02/27 08:30 | Nemanja Malesevic v Mateo Bubalo | 6-1,6-2 |
| ITF Italy F3 Qual | 2018/03/12 19:30 | Tommaso Gabrieli v Horst Rieder | 7-5,7-5 |
| ITF Italy F2 | 2018/03/08 12:30 | Horst Rieder v Lorenzo Giustino | 3-6,0-6 |
| ITF Turkey F46 Qual | 2017/12/02 06:45 | Egor Matvievici v Horst Rieder | 6-2,3-6,6-4 |
| ITF Turkey F44 | 2017/11/20 07:15 | Horst Rieder v Jan Zednik | 6-7,2-6 |
| ITF Turkey F44 | 2017/11/19 07:15 | Horst Rieder v Preston Connor | 6-1,6-2 |
| ITF Turkey F43 | 2017/11/12 07:15 | Horst Rieder v Liang-Yu Lin | 4-6,4-6 |
| ITF Turkey F42 | 2017/11/06 09:00 | Andrea Bolla v Horst Rieder | 6-1,6-1 |
| ITF Turkey F42 | 2017/11/05 09:30 | Charles Tzicas v Horst Rieder | 1-6,3-6 |