| Slovenia Future Series Qual | 2021/11/25 12:05 | Magnus Bach Kristensen v Filip Karlborg | W | 0-2 |
| Polish Int. Qual | 2021/09/24 07:20 | Tarun Reddy Katam v Filip Karlborg | L | 2-1 |
| Polish Int. Qual | 2021/09/23 17:30 | Filip Karlborg v Raghu Mariswamy | W | 2-1 |
| Polish Int. Qual | 2021/09/23 14:30 | Filip Karlborg v Enrico Baroni | W | 2-1 |
| Open de Suède - Qualif. | 2020/01/16 09:10 | Filip Karlborg v Jaeger, Jonas | L | 1-2 |