Stadium: Court 1 Round: 54 Ground: Clay
| ITF M15 Eupen | 2023/08/08 08:00 | Ronetto Van Tilburg v Stijn Pel | 4-6,7-6,10-6 |
| ITF M15 Eupen | 2023/08/07 07:00 | Freek Van Donselaar v Stijn Pel | 2-6,0-6 |
| ITF M15 Eindhoven | 2023/07/30 10:30 | Roland Stuurman v Stijn Pel | 6-3,6-7,10-4 |
| ITF M25 Esch/Alzette | 2023/07/20 09:25 | Chris Rodesch v Stijn Pel | 6-1,6-0 |
| ITF M25 Esch/Alzette | 2023/07/19 09:30 | Luis Britto v Stijn Pel | 6-4,2-6,4-6 |
| ITF M25 Esch/Alzette | 2023/07/17 17:00 | Luis Britto v Stijn Pel | 2-6,4-6 |
| ITF M25 Esch/Alzette | 2023/07/17 13:20 | Christian Hansen v Stijn Pel | 3-6,6-3,7-10 |
| ITF M25 Kassel | 2023/07/11 09:30 | Alessio Vasquez Gehrke v Stijn Pel | 6-1,6-4 |
| ITF M15 Kalmar | 2023/05/15 14:45 | Niels Visker v William Alsterback | 6-0,6-0 |
| ITF M25 Varnamo | 2023/05/08 13:35 | Peter Goldsteiner v William Alsterback | 6-0,6-1 |
| ITF M15 Trier | 2022/08/22 08:00 | Felix Einig v William Alsterback | 6-1,6-2 |
| ITF M15 Sofia | 2022/07/03 09:00 | William Alsterback v Ioannis Kountourakis | 1-6,1-6 |
| ITF M15 Cairo | 2022/04/13 14:55 | Fares Zakaria v William Alsterback | 6-1,6-0 |
| ITF M15 Sharm El Sheikh | 2022/04/06 14:55 | William Alsterback v Samuel Vincent Ruggeri | 2-6,1-6 |
| ITF M15 Sharm El Sheikh | 2022/03/20 13:30 | William Alsterback v Leonardo Malgaroli | 3-6,0-6 |