| Bulgarian Int. Qual | 2023/10/05 13:00 | Justin Seibel v Helmer Andersson | W | 2-1 |
| Bulgarian Int. Qual | 2023/10/05 07:35 | Justin Seibel v Berat Ayindi | W | 2-0 |
| Croatian Int. | 2023/09/29 09:55 | Martin Bundgaard v Justin Seibel | L | 2-0 |
| Croatia Int. Qual | 2023/09/28 18:30 | Szymon Stokfisz v Justin Seibel | W | 0-2 |
| Croatia Int. Qual | 2023/09/28 08:10 | Justin Seibel v Arun Kumar Ashok Kumar | W | 2-1 |
| Latvia Int. Qual | 2023/08/31 08:20 | Neil Bhabuta v Justin Seibel | L | 2-1 |
| Latvia Int. Qual | 2023/08/30 12:00 | Emil Dantler v Justin Seibel | W | 1-2 |
| Lithuanian Int. Qual | 2023/06/08 16:40 | Justin Seibel v Yohan Barbieri | L | 0-2 |
| Bulgarian Int. Qual | 2023/10/05 13:25 | Bartosz Krajewski v Niilo Nyqvist | W | 0-2 |
| Bulgarian Int. Qual | 2023/10/05 08:10 | Burak Kucuk v Niilo Nyqvist | W | 0-2 |
| Latvia Int. Qual | 2023/08/31 14:10 | Neil Bhabuta v Niilo Nyqvist | L | 2-1 |
| Latvia Int. Qual | 2023/08/31 08:20 | Piotr Krajewski v Niilo Nyqvist | W | 0-2 |
| Latvia Int. Qual | 2023/08/30 12:35 | Niilo Nyqvist v Mykola Shkliaiev | W | 2-0 |
| European Club Championships | 2023/06/19 13:50 | Thomas Fourcade v Niilo Nyqvist | L | 2-1 |
| Slovenia Future Series Qual | 2022/11/24 17:55 | Dragoslav Petrovic v Niilo Nyqvist | L | 2-0 |
| Slovenia Future Series Qual | 2022/11/24 08:35 | Thomas Barth v Niilo Nyqvist | W | 1-2 |