| Slovenia Future Series WD | 11/22 14:20 | - | Leal C / Solis L v Isenberg T / Stepper B | L | 2-0 | |
| SaarLorLux Open 2019, WD | 10/30 10:40 | 5 | Isenberg T / Stepper B v Macias D / Nishimura D | L | 0-2 | |
| Cyprus Int. WD | 10/12 13:30 | - | Isenberg T / Stepper B v Gonda D / Korosi A | L | 0-2 | |
| Cyprus Int. WD | 10/11 13:25 | - | Prozorova A / Rudakova V v Isenberg T / Stepper B | W | 1-2 | |
| Croatian Int. WD | 04/19 18:00 | - | Dzhanhob. / Vargova v Isenberg T / Stepper B | L | 2-0 | |
| Croatian Int. WD | 04/19 12:10 | - | Niklas A / Rudzinska W v Isenberg T / Stepper B | W | 0-2 | |
| Giraldilla Int. XD | 11/01 11:55 | 4 | Goliszewski J / Kaepplein L v Isenberg T / Stepper B | L | 2-0 | |
| Giraldilla Int. XD | 09/22 09:20 | 1 | Ishibashi M / Shinoda M v Isenberg T / Stepper B | L | 2-0 | |
| Indonesia Masters XD | 02/28 11:18 | - | Isenberg T / Stepper B v Nystrom J / Pekkola S | L | 0-2 |