Stadium: Court 8 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Akko | 2019/06/10 06:30 | Horst Rieder v Lior Goldenberg | 4-6,5-7 |
| ITF M15 Antalya | 2019/05/22 08:50 | Ergi Kirkin v Horst Rieder | 6-2,6-3 |
| ITF M15 Antalya | 2019/05/13 07:45 | Horst Rieder v Kuzey Cekirge | 2-6,1-6 |
| ITF Turkey F41 | 2018/12/16 06:00 | Horst Rieder v Razvan M Codescu | 6-2,3-6,3-6 |
| ITF Turkey F40 | 2018/12/09 06:30 | Gorazd Srbljak v Horst Rieder | 6-2,6-3 |
| ITF Turkey F40 | 2018/12/08 06:00 | Kaya Arinc v Horst Rieder | 4-6,1-6 |
| ITF Turkey F35 | 2018/11/04 07:00 | Horst Rieder v Alex M Pujolras | 2-6,3-6 |
| ITF Turkey F35 | 2018/11/03 09:00 | Adria V. Ferrer v Horst Rieder | 2-6,1-6 |
| ITF M15 Netanya | 2019/06/17 06:30 | Rotem Sobol v Rikhardt Bierman | 6-2,2-6,6-10 |
| ITF M15 Akko | 2019/06/10 06:30 | Amit Cohen v Rikhardt Bierman | 1-6,1-6 |
| ITF M15 Tabarka | 2019/05/14 09:00 | Sacha Modica v Rikhardt Bierman | 6-1,6-1 |
| ITF M15 Tabarka | 2019/05/13 08:30 | Filip Ambrozy v Rikhardt Bierman | 6-3,2-6,1-10 |
| ITF M15 Tabarka | 2019/05/08 08:30 | Filip Cristian Jianu v Rikhardt Bierman | 6-2,6-1 |
| Full List | 2019/05/06 08:30 | Rikhardt Bierman v Egill Sigurdsson | 6-3,6-4 |
| ITF Great Britain F6 | 2018/09/24 09:30 | George Houghton v Rikhardt Bierman | 6-3,6-1 |
| ITF Great Britain F5 | 2018/09/16 12:00 | Romain Bauvy v Rikhardt Bierman | 6-3,6-0 |