| Slovenia Int. | 2021/05/20 12:00 | Ivan Rusev v Karl Kert | W | 2-0 |
| Abu Dhabi Masters Qual | 2023/10/17 12:50 | Nachakorn Pusri v Ivan Rusev | L | 2-0 |
| Dutch Open Qual | 2023/10/11 14:00 | Dennis Koppen v Ivan Rusev | L | 2-1 |
| Dutch Open Qual | 2023/10/11 12:35 | Ivan Rusev v Rakesh Sharma | W | 2-0 |
| Bulgarian Int | 2023/10/06 07:15 | Brian Holtschke v Ivan Rusev | L | 2-1 |
| Nouvelle Aquitane Future Series | 2023/07/07 09:20 | Romeo Makboul v Ivan Rusev | L | 2-1 |
| Nantes Int. Qual | 2023/06/15 11:15 | Ivan Rusev v Harry Huang | L | 0-2 |
| Nantes Int. Qual | 2023/06/15 07:00 | Rune Van Dalm v Ivan Rusev | W | 0-2 |
| Austrian Open Qual | 2023/05/25 08:00 | Karan Rajan Rajarajan v Ivan Rusev | L | 2-1 |
| Norwegian International | 2023/11/10 16:20 | Karl Kert v Yanis Gaudin | L | 0-2 |
| Norwegian International | 2023/11/10 11:00 | Karl Kert v Tino Daoudal | W | 2-1 |
| Croatian Int. | 2023/09/29 16:50 | Karl Kert v Valentin Singer | L | 0-2 |
| Croatian Int. | 2023/09/29 08:00 | Karl Kert v Mykhailo Vyshnevyi | W | 2-0 |
| Latvia Int. | 2023/09/02 06:40 | Aria Dinata v Karl Kert | L | 2-0 |
| Latvia Int. | 2023/09/01 10:00 | Mateusz Danielak v Karl Kert | W | 0-2 |
| European Games | 2023/06/26 08:30 | Toma Junior Popov v Karl Kert | L | 2-0 |
| Lithuanian Int. | 2023/06/09 13:15 | Rui Yang Ryan Tan v Karl Kert | L | 2-1 |