| Luxembourg Open - Kwal. | 05/02 15:00 | - | Finn Achthoven v Kai Hern Huan | L | 1-2 | |
| Dutch Int. - Kwal. | 03/14 17:40 | - | Noah Haase v Finn Achthoven | L | 2-1 | |
| Dutch Int. - Kwal. | 03/14 15:40 | - | Finn Achthoven v Mats Duwel | W | 2-1 | |
| EK teams | 02/16 10:20 | - | Finn Achthoven v Toby Penty | L | 0-2 | |
| EK teams | 02/15 09:20 | - | Christo Popov v Finn Achthoven | L | 2-0 | |
| Swedish Open - Kwal. | 01/18 10:00 | - | Finn Achthoven v Le Manh An Tran | L | 0-2 | |
| Irish Open - Kwal. | 11/15 17:45 | - | Wolfgang Gnedt v Finn Achthoven | L | 2-0 | |
| Irish Open - Kwal. | 11/15 14:15 | - | Finn Achthoven v Dylan Noble | L |
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| Irish Open - Kwal. | 11/15 10:10 | - | James Robertson v Finn Achthoven | W | 0-2 | |
| Abu Dhabi Masters - Kwal. | 10/17 13:40 | 5 | Vishal Vasudevan v Finn Achthoven | L | 2-1 | |
| Dutch Open | 10/12 12:35 | - | Finn Achthoven v Aram Mahmoud | D |
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| Dutch Open | 10/11 14:55 | - | Finn Achthoven v Arun Kumar Ashok Kumar | - | Walkover | |
| Scottish Open - Kwal. | 10/05 13:50 | - | Muteeb Dar v Finn Achthoven | - | Walkover | |
| Scottish Open - Kwal. | 10/05 11:30 | - | Angus Meldrum v Finn Achthoven | W |
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| Poolse Int. | 09/22 11:00 | - | Alexander Pedersen v Finn Achthoven | L | 2-1 | |
| Belgian Int. - Kwal. | 09/13 14:00 | - | Finn Achthoven v Harry Huang | L | 0-2 | |
| Belgian Int. - Kwal. | 09/13 12:40 | - | Finn Achthoven v Alexander Pedersen | W | 2-1 | |
| Belgian Int. - Kwal. | 09/13 10:40 | - | Alexander Ringbaek v Finn Achthoven | W | 1-2 | |
| Slovenië - Future Series | 09/08 15:45 | - | Julien Scheiwiller v Finn Achthoven | L | 2-0 | |
| Slovenië - Future Series | 09/08 10:40 | - | Finn Achthoven v Chu Chen Lin | W | 2-0 | |
| Latvia Int. | 09/01 12:00 | - | Finn Achthoven v Kian-Yu Oei | L | 1-2 | |
| Nouvelle Aquitane Future Series | 07/07 08:00 | - | Julien Scheiwiller v Finn Achthoven | L | 2-1 | |
| Nantes Int. - Kwal. | 06/15 08:20 | - | Tino Daoudal v Finn Achthoven | L | 2-0 | |
| Lithuanian Int. | 06/09 10:45 | - | Heng Lin Ngan v Finn Achthoven | L | 2-1 | |
| Bonn Int. - Kwal. | 05/31 14:00 | - | Neil Bhabuta v Finn Achthoven | L | 2-0 | |
| Slovenia Open - Kwal. | 05/17 07:20 | - | Finn Achthoven v Abhishek Yeligar | L | 0-2 | |
| Luxembourg Open - Kwal. | 05/04 17:30 | - | Finn Achthoven v Bruno Carvalho | L | 1-2 | |
| Luxembourg Open - Kwal. | 05/04 14:10 | - | Finn Achthoven v Brian Holtschke | W | 2-1 | |
| Luxembourg Open - Kwal. | 05/04 09:55 | - | Finn Achthoven v Enrico Baroni | W | 2-0 | |
| Dutch Int. - Kwal. | 04/13 08:15 | - | Finn Achthoven v Keisuke Fujiwara | L | 0-2 |