| Bonn Int. Qual | 06/15 09:10 | - | Rasindu Hendahewa v Kirste, Ansgar | L | 2-0 | |
| Austrian Open Qual | 02/19 10:45 | - | Kirste, Ansgar v Messerschmidt, Rasmus | L | 0-2 | |
| SaarLorLux Open 2019, MS | 10/29 19:00 | 6 | Kirste, Ansgar v Brian Holtschke | L | 0-2 | |
| Polish Int. Qual | 09/19 14:35 | - | Kirste, Ansgar v Toft, Soeren | L | 0-2 |