| Finnish Int. | 04/27 07:20 | - | Yudai Okimoto v Valentin Singer | L | 2-1 | |
| Finnish Int. | 04/26 14:45 | - | Valentin Singer v Tauri Kilk | W | 2-1 | |
| Finnish Int. | 04/26 08:20 | - | Valentin Singer v Tim Mörk | W | 2-0 | |
| Malta Int. | 04/07 08:40 | - | Wolfgang Gnedt v Valentin Singer | L | 2-0 | |
| Malta Int. | 04/06 14:30 | - | Elias Bracke v Valentin Singer | W | 0-2 | |
| Malta Int. | 04/06 10:45 | - | Amaury Lievre v Valentin Singer | W | 0-2 | |
| Malta Int. | 04/05 13:00 | - | Michael Tomic v Valentin Singer | W | 0-2 | |
| Estonian International | 01/12 14:40 | - | Valentin Singer v Joakim Oldorff | L | 0-2 | |
| Estonian International | 01/12 09:00 | - | Samuel O'Brien Ricketts v Valentin Singer | - | Walkover | |
| Welsh International | 11/30 10:00 | - | Valentin Singer v Ade Resky Dwicahyo | L | 1-2 | |
| Welsh International - Kvalifikation | 11/28 13:40 | - | Callum Smith v Valentin Singer | - | View | |
| Irish Open | 11/16 14:00 | - | Valentin Singer v Harry Huang | L | 1-2 | |
| Irish Open | 11/16 11:00 | - | Valentin Singer v Matthias Kicklitz | - | View | |
| Hungarian International | 11/02 12:45 | - | Valentin Singer v Kian-Yu Oei | L | 1-2 | |
| Czech Open | 10/20 15:30 | - | Valentin Singer v Gustav Bjorkler | L | 0-2 | |
| Czech Open | 10/20 07:40 | - | Valentin Singer v Ethan Rose | - | Walkover | |
| Croatian International | 09/30 08:20 | - | Aria Dinata v Valentin Singer | L | 2-0 | |
| Croatian International | 09/29 16:50 | - | Karl Kert v Valentin Singer | W | 0-2 | |
| Croatian International | 09/29 10:20 | - | David Silva v Valentin Singer | W | 0-2 | |
| Belgian International | 09/14 10:40 | - | Julien Carraggi v Valentin Singer | L | 2-0 | |
| Latvia International | 09/03 06:20 | - | Daniil Dubovenko v Valentin Singer | L | 2-1 | |
| Latvia International | 09/02 12:20 | - | Kian-Yu Oei v Valentin Singer | W | 1-2 | |
| Latvia International | 09/02 07:10 | - | Tauri Kilk v Valentin Singer | W | 1-2 | |
| Latvia International | 09/01 12:30 | - | Viacheslav Yakovlev v Valentin Singer | W | 0-2 | |
| Nouvelle Aquitane Future Series | 07/07 12:40 | - | Valentin Singer v Thomas Fourcade | L | 0-2 | |
| Nouvelle Aquitane Future Series | 07/07 08:45 | - | Valentin Singer v Gustav Bjorkler | W | 2-0 | |
| Nantes International - Kvalifikation | 06/15 10:20 | - | Collins Valentine Filimon v Valentin Singer | L | 2-1 | |
| Lithuanian International | 06/09 13:15 | - | Henrikho Kho Wibowo v Valentin Singer | L | 2-1 | |
| Austrian Open - Kvalifikation | 05/26 07:40 | - | Valentin Singer v Jia Jie Tan | L | 0-2 | |
| Austrian Open - Kvalifikation | 05/25 14:35 | - | Valentin Singer v Orijit Chaliha | W | 2-0 |