| Welsh Int Qual | 2021/12/01 17:45 | Finn Achthoven v Johnnie Torjussen | L | 0-2 |
| Welsh Int Qual | 2021/12/01 11:55 | Misbun Ramdan Mohmed Misbun v Finn Achthoven | W | 0-2 |
| Slovenia Future Series Qual | 2021/11/25 14:25 | Sid Palakkal v Finn Achthoven | L | 2-0 |
| Slovenia Future Series Qual | 2021/11/25 12:30 | Kai Niederhuber v Finn Achthoven | L | 2-0 |
| Polish Int. Qual | 2021/09/23 10:00 | Adi Pratama v Finn Achthoven | L | 2-0 |
| Spain Int Qual | 2021/06/16 15:25 | Elias Bracke v Finn Achthoven | L | 2-0 |
| Spain Int Qual | 2021/06/16 09:40 | Joseph Waugh v Finn Achthoven | W | 0-2 |
| Austrian Open Qual | 2021/05/27 09:50 | Finn Achthoven v Miha Ivanic | L | 1-2 |