| Italian Int. - Kval | 2021/12/16 10:00 | Senne Houthoofd v Robin Mesman | W | 2-0 |
| Slovenia - Future Series - Kval | 2021/11/25 10:55 | Senne Houthoofd v Oliver Lee Nowak | L | 1-2 |
| Austrian Open - Kval | 2021/05/27 08:10 | Senne Houthoofd v Adi Pratama | L | 0-2 |
| Slovenia Int. - Kval | 2021/05/19 14:40 | Senne Houthoofd v Justin Hoh | L | 0-2 |
| Slovenia Int. - Kval | 2021/05/19 13:25 | Senne Houthoofd v Adam Konczol | W | 2-0 |
| Slovenia Int. - Kval | 2021/05/19 11:30 | Martin Cerkovnik v Senne Houthoofd | W | 0-2 |
| Portuguese Int. Qual | 2021/05/06 13:00 | Gustav Bjorkler v Senne Houthoofd | L | 2-0 |
| Hellas Int. - Kval | 2019/05/02 12:00 | Senne Houthoofd v Tilemachos Voukoureslis | W | 2-0 |
| Italian Int. - Kval | 2021/12/16 13:15 | Rasmus Careo Christensen v Markus Barth | W | 0-2 |
| Welsh Int Qual | 2021/12/01 10:10 | Markus Barth v Ben Hunt | L | 0-2 |
| Czech Open - Kval | 2021/10/21 09:20 | Kilian Meusburger v Markus Barth | L | 2-1 |
| Bulgarian Int | 2021/10/08 12:00 | Markus Barth v Meiraba Luwang Maisnam | L | 0-2 |
| Bulgarian Int | 2021/10/08 07:10 | Markus Barth v Enogat Roy | W | 2-1 |
| Ukraine Int. | 2021/09/08 09:20 | Markus Barth v Ken Yon Ong | L | 0-2 |
| Slovak Open | 2020/02/28 10:00 | Yu Jen Chi v Markus Barth | L | 2-1 |
| Slovak Open | 2020/02/27 15:05 | Alejandro Alcala v Markus Barth | W | 1-2 |