| event | round | table | player one | result | player two |
| Regional Championships Naples 2023 | 7 | 3 | Severin, Thoralf (1805) | Lost 0-2 | Rohrboeck, Michael (1618) |
| Regional Championships Naples 2023 | F | Severin, Thoralf (1901) | Lost 0-2 | Rohrboeck, Michael (1747) | |
| World Championship XXIX | 1 | 40 | Severin, Thoralf (1714) | Lost 0-2 | Rohrboeck, Michael (1732) |