Stadium: Court 7 Round: 62 Ground: Clay
| ITF M15 Trier | 2023/08/21 15:00 | Jannik Maute v Freek Van Donselaar | 6-1,6-4 |
| ITF M15 Trier | 2023/08/21 09:30 | Freek Van Donselaar v Lukas Janousek | 6-4,7-6 |
| ITF M15 Eupen | 2023/08/07 07:00 | Freek Van Donselaar v Stijn Pel | 2-6,0-6 |
| ITF M15 Metzingen | 2023/07/23 07:30 | Freek Van Donselaar v Arthur Nagel | 3-6,6-3,6-10 |
| ITF M25 Esch/Alzette | 2023/07/10 17:30 | Marlon Vankan v Freek Van Donselaar | 6-2,6-3 |
| ITF M25 Esch/Alzette | 2023/07/10 12:50 | Freek Van Donselaar v Andreja Petrovic | 6-3,6-4 |
| ITF M25 Esch/Alzette | 2023/07/09 14:00 | Umberto Maria Giovannini v Freek Van Donselaar | 6-4,1-6,4-10 |
| UTR Pro Tennis Series Blaricum | 2022/11/19 07:00 | Freek Van Donselaar v Ole Bredschneijder | 0-6,3-5 |
| ITF M15 Meerbusch | 2023/04/25 11:00 | Piet Steveker v Paulo Knippling | 4-6,7-5,6-2 |
| ITF M15 Sharm El Sheikh | 2023/03/26 08:00 | Paulo Knippling v Adam Blecha | 0-6,3-6 |
| ITF M25 Monastir | 2023/02/05 08:30 | Samuel M Arjona v Paulo Knippling | 6-4,6-3 |
| ITF M15 Monastir | 2022/12/04 10:00 | Leonardo Rossi v Paulo Knippling | 7-5,6-1 |
| ITF M15 Monastir | 2022/11/27 08:30 | Egor Agafonov v Paulo Knippling | 6-4,6-3 |
| ITF M15 Metzingen | 2022/07/17 07:30 | Ighor Halmenschlager Reis v Paulo Knippling | 6-0,6-1 |
| ITF M25 Quinta Do Lago | 2022/03/21 17:40 | Naman Sharma v Paulo Knippling | 3-6,7-6,10-7 |
| ITF M25 Quinta Do Lago | 2022/03/21 13:30 | Paulo Knippling v Rodrigo Deleu | 6-7,6-4,10-5 |