| Polish Int. | 2019/09/20 10:20 | Ivan Rusev v Milic, Luka | W | 2-0 |
| Belgian International 2019, MS | 2019/09/12 09:20 | Luka Wraber v Ivan Rusev | L | 2-1 |
| Belgian Int. Qual | 2019/09/11 16:15 | Ivan Rusev v Elias Bracke | W | 2-0 |
| Bulgarian Open | 2019/08/14 08:00 | Ivan Rusev v Ditlev Jaeger Holm | L | 0-2 |
| White Nights | 2019/07/11 10:30 | Wolfgang Gnedt v Ivan Rusev | L | 2-1 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/02/20 13:30 | Ivan Rusev v Li, S. F. | L | 0-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/02/20 09:00 | Ivan Rusev v Kim Kristensen, D. | W | 2-0 |
| Estonie Int. - | 2019/01/11 17:00 | B.R. Sankeerth v Ivan Rusev | L | 2-1 |
| Polish Int. | 2019/09/20 10:20 | Leon Seiwald v Joonas Korhonen | W | 2-1 |
| Belgian International 2019, MS | 2019/09/12 13:00 | Luis Enrique Penalver v Leon Seiwald | L | 2-1 |
| Kharkiv International 2019, MS, Qualification | 2019/09/04 11:30 | Leon Seiwald v Gergo Pytel | L | 1-2 |
| Belarus Int. | 2019/08/30 10:40 | Must, Raul v Leon Seiwald | L | 2-1 |
| Slovenia Int. Qual | 2019/05/15 08:30 | Leon Seiwald v B.M. Rahul Bharadwaj | L | 0-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/02/21 09:10 | Setiabudi, Bobby v Leon Seiwald | L | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/12/13 13:45 | Enghoej, M. v Leon Seiwald | W | 0-1 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/12/13 08:30 | Grimley, Christopher v Leon Seiwald | W | 0-2 |