| Welsh Int | 2021/12/03 12:40 | Brian Holtschke v Magnus Johannesen | L | 0-2 |
| Welsh Int | 2021/12/02 14:20 | Brian Holtschke v Johnnie Torjussen | W | 2-0 |
| Welsh Int Qual | 2021/12/02 10:20 | Joel Koenig v Brian Holtschke | W | 0-2 |
| Welsh Int Qual | 2021/12/01 14:50 | Brian Holtschke v Rohan Midha | W | 2-0 |
| Welsh Int Qual | 2021/12/01 11:20 | Brian Holtschke v James Robertson | W | 2-1 |
| Slovenien - Future Series | 2021/11/27 16:00 | Brian Holtschke v Andi Fadel Muhammad | L | 0-2 |
| Slovenien - Future Series | 2021/11/27 09:00 | Brian Holtschke v Christopher Vittoriani | W | 2-1 |
| Slovenien - Future Series | 2021/11/26 17:05 | Ivan Rusev v Brian Holtschke | W | 1-2 |
| Slovenia Int. - Kval | 2021/05/19 15:45 | Ivan Kovacevic v Jonas Schwarz | L | 2-0 |
| Portuguese Int. Qual | 2021/05/06 12:30 | Samuel Hsiao v Jonas Schwarz | L | 2-1 |
| Portuguese Int. Qual | 2021/05/06 09:00 | Paulo Silva v Jonas Schwarz | W | 0-2 |
| Litauen - Int. - Kval | 2019/06/06 10:40 | Jonas Schwarz v Markus Barth | L | 1-2 |
| Kroatien Int. - Kval | 2019/04/18 11:40 | Jonas Schwarz v Rahul Patel | L | 0-2 |
| Swiss Open - Damdubbel - Kval | 2018/11/14 11:30 | Ethan Rose v Jonas Schwarz | L | 2-0 |