Stadium: Court 2 Round: 62 Ground: Clay
| ITF M15 Heraklion | 2021/11/15 11:00 | Marc Othman Ktiri v Leon Hoeveler | 6-4,6-4 |
| ITF M15 Heraklion | 2021/11/14 11:00 | Leon Hoeveler v Tom Gentzsch | 6-4,6-3 |
| ITF M15 Heraklion | 2021/11/09 07:00 | Leon Hoeveler v Dong Ju Kim | 1-6,5-7 |
| ITF M15 Heraklion | 2021/11/07 11:00 | Adam Jurajda v Leon Hoeveler | 6-2,2-6,8-10 |
| ITF M15 Heraklion | 2021/11/03 10:20 | Matthew Romios v Leon Hoeveler | 6-3,6-1 |
| ITF M15 Heraklion | 2021/11/02 07:00 | Leon Hoeveler v Axel Bergdahl | 7-6,7-6 |
| ITF M25 Hamburg | 2021/10/17 10:35 | Benjamin Dhoe v Leon Hoeveler | 4-6,6-1,10-6 |
| ITF M15 Forbach | 2021/09/27 08:00 | Cyril Vandermeersch v Leon Hoeveler | 6-3,6-1 |
| ITF M15 Heraklion | 2021/06/07 07:30 | Edoardo Graziani v Stijn Pel | 6-2,6-3 |
| ITF M15 Heraklion | 2021/05/31 06:30 | Reese Stalder v Stijn Pel | 6-4,4-6,10-7 |
| ITF M15 Cairo | 2021/04/19 09:30 | Stijn Pel v Shohei Chikami | 6-3,6-7,5-10 |
| ITF M15 Cairo | 2021/04/18 17:30 | Stijn Pel v Omar El-Moslemany | 6-0,1-6,10-7 |
| ITF M15 Cairo | 2021/04/11 11:00 | Stijn Pel v Juan P Canas Garcia | 3-6,7-5,8-10 |
| ITF M15 Indore | 2021/03/08 07:30 | Paras Dahiya v Stijn Pel | 6-3,6-3 |
| ITF M15 Indore | 2021/03/08 05:00 | Lakshya Gupta v Stijn Pel | 4-6,6-7 |
| ITF M15 Indore | 2021/03/07 03:30 | Dharmil Shah v Stijn Pel | 2-6,3-6 |