Stadium: Center Court_1 Round: 54 Ground: Clay
| ITF M25 Bolzano | 2021/08/01 07:30 | Rieder, Horst v Gabriele Camilli | 6-1,7-6 |
| ITF M25 Ricany | 2019/09/22 09:00 | Paty, Michael v Rieder, Horst | 2-6,4-6 |
| ITF - M25 Santa Margherita | 2019/09/18 15:40 | Rieder, Horst v Di Nocera, Riccardo | 3-6,7-5,4-6 |
| ITF - M25 Santa Margherita | 2019/09/17 12:00 | Sudzum, Marcel Marlon v Rieder, Horst | 0-6,0-6 |
| ITF - M25 Santa Margherita | 2019/09/13 11:00 | Rieder, Horst v Wilson Leite | 1-6,1-6 |
| ITF - M25 Santa Margherita | 2019/09/11 13:30 | Portaluri, Giorgio v Rieder, Horst | 3-6,4-6 |
| ITF - M25 Santa Margherita | 2019/09/10 13:35 | Rieder, Horst v Sudzum, Marcel Marlon | 2-6,6-2,10-5 |
| ITF - M25 Santa Margherita | 2019/09/09 12:00 | Rieder, Horst v Mokrousov, Maxim | 6-0,6-1 |
| ITF M25 Bolzano | 2021/08/01 07:25 | Kirchlechner, Tobias v Dominique Graf | 1-6,1-6 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Dominique Graf v Lukas Palovic | 1-6,4-6 |
| ITF - M15 Antalya | 2021/06/20 07:00 | Dominique Graf v Andrea Picchione | 5-7,7-5,4-10 |
| ITF - M15 Antalya | 2021/06/13 07:30 | Hiramatsu, Shinnosuke v Dominique Graf | 6-0,3-6,10-4 |
| ITF - M15 Antalya | 2021/06/08 07:00 | Francisco Comesana v Dominique Graf | 6-1,7-6 |
| ITF - M15 Antalya | 2021/06/07 06:50 | Dominique Graf v Lorenzo Joaquin Rodriguez | 6-3,6-1 |
| ITF - M15 Antalya | 2021/06/06 07:30 | Dominique Graf v Bilgin, Burak | 6-4,6-3 |
| ITF M25 Most | 2021/05/23 15:00 | Filip Duda v Dominique Graf | 6-4,6-4 |