| German Open 2019, WD, Qualification | 09/27 10:00 | 1 | Persson, Jonathan v Dellenbach, Rudolf | W | 1-2 | |
| Indonesia Masters XD | 03/10 12:55 | - | 럼베이, 이흐산 레오나르도 이마누엘 v Dellenbach, Rudolf | L | 2-0 | |
| Giraldilla Int. XD | 01/19 18:31 | - | Dellenbach, Rudolf v 헤르만사 | L | 0-2 | |
| Giraldilla Int. XD | 12/13 10:48 | - | Dellenbach, Rudolf v 아르니오, 앙리 | L | 0-2 |