| Polish Int. XD | 2021/09/24 10:00 | Trecki/Swierczynska v Wassink/Tirtosentono | W | 0-2 |
| Spain Int XD | 2021/06/18 07:35 | Wassink/Tirtosentono v Hemming C / Pugh J | L | 0-2 |
| Spain Int XD | 2021/06/17 11:40 | Ivanic/Arih v Wassink/Tirtosentono | W | 1-2 |
| Portuguese Int. XD Qual | 2021/05/07 08:00 | Sondergaard/Werge v Wassink/Tirtosentono | L | 2-0 |
| SaarLorLux Open 2019, XD | 2020/10/29 16:30 | Labar R / Tran A v Wassink/Tirtosentono | L | 2-0 |
| SaarLorLux Open 2019, XD | 2020/10/28 12:30 | Wassink/Tirtosentono v Stipsits D / Au Yeong S | W | 2-1 |
| Ukraine Int. XD | 2021/09/09 07:20 | Yap/Siow v Birker P / Hochmeir K | L | 2-0 |
| Ukraine Int. XD | 2021/09/08 08:00 | Yakovlev/Tkach v Birker P / Hochmeir K | W | 1-2 |
| Spain Int XD | 2021/06/19 07:00 | Hemming C / Pugh J v Birker P / Hochmeir K | L | 2-0 |
| Spain Int XD | 2021/06/18 13:00 | Mueller/Stern v Birker P / Hochmeir K | W | 1-2 |
| Spain Int XD | 2021/06/18 07:45 | Leal/Lopez v Birker P / Hochmeir K | W | 0-2 |
| Austrian Open - Doubles Mixtes | 2021/05/28 11:00 | Choong/Toh v Birker P / Hochmeir K | L | 2-1 |
| Slovenia Int. XD | 2021/05/21 10:00 | Birker P / Hochmeir K v Knudsen/Norrman | L | 0-2 |
| Slovenia Int. XD | 2021/05/21 08:00 | Birker P / Hochmeir K v Doder/Loncar | W | 2-1 |