| WTT - Feeder Düsseldorf | 2023/02/16 12:45 | Deni Kozul v Niagol Stoyanov | L | 3-0 |
| WTT - Feeder - Doha II | 2023/10/17 09:10 | Niagol Stoyanov v Jakub Dyjas | L | 1-3 |
| Liga dos Campeões | 2023/09/24 16:00 | Niagol Stoyanov v Pavel Sirucek | L | 0-3 |
| Liga dos Campeões Europeus | 2023/09/23 12:00 | Niagol Stoyanov v Sebastian Loso | W | 3-2 |
| Liga dos Campeões Europeus | 2023/09/22 16:45 | Koyo Kanamitsu v Niagol Stoyanov | L | 3-1 |
| WTT - Feeder - Banguecoque | 2023/09/07 12:55 | Niagol Stoyanov v Chan-Hyeok Park | L | 2-3 |
| WTT - Feeder - Banguecoque | 2023/09/07 07:05 | Niagol Stoyanov v Yanghyun Kim | W | 3-1 |
| WTT - Feeder - Panagyurishte | 2023/08/31 14:40 | Esteban Dorr v Niagol Stoyanov | L | 3-1 |
| WTT - Feeder Olomouc | 2023/08/24 15:45 | Niagol Stoyanov v Kristian Karlsson | L | 1-3 |
| WTT - Contender - Mascate - Qualificação | 2023/10/09 13:20 | Sora Matsushima v Deni Kozul | L | 3-0 |
| WTT - Contender - Mascate - Qualificação | 2023/10/09 06:45 | Deni Kozul v Navid Shams | W | 3-0 |
| Taça da Europa | 2023/09/24 14:30 | Peter Sereda v Deni Kozul | W | 1-3 |
| Campeonato Europeu de Equipas | 2023/09/14 11:40 | Deni Kozul v Can Akkuzu | W | 3-2 |
| Campeonato Europeu de Equipas | 2023/09/11 08:20 | Deni Kozul v Jonathan Groth | L | 2-3 |
| Campeonato Europeu de Equipas | 2023/09/10 11:20 | Deni Kozul v Abdullah Yigenler | W | 3-0 |
| WTT - Star Contender - Liubliana | 2023/07/05 13:55 | Jules Rolland v Deni Kozul | L | 3-0 |
| Jogos Europeus - Equipa | 2023/06/28 14:40 | Deni Kozul v Lubomir Pistej | L | 0-3 |