Stadium: Court 2 Round: 28 Ground: Clay
| Challenger Bratislava | 2019/06/17 09:30 | Peter Heller v Jeroen Vanneste | 4-6,4-6 |
| ITF Turkey F33 | 2018/10/26 07:00 | Jeroen Vanneste v Peter Heller | 1-6,2-6 |
| ITF M15 Antalya | 2021/04/30 09:50 | Rio Noguchi v Peter Heller | 6-2,3-6,2-6 |
| ITF M15 Antalya | 2021/04/29 07:25 | Dan Alexandru Tomescu v Peter Heller | 6-0,3-6,5-7 |
| ITF M15 Antalya | 2021/04/28 07:00 | Riccardo Balzerani v Peter Heller | 1-6,4-6 |
| ITF M25 Meerbusch | 2021/04/16 10:45 | Elmar Ejupovic v Peter Heller | 6-3,7-6 |
| ITF M25 Meerbusch | 2021/04/15 10:00 | Tak Khunn Wang v Peter Heller | 1-6,3-6 |
| ITF M25 Meerbusch | 2021/04/13 16:40 | Peter Heller v Viktor Durasovic | 6-3,6-4 |
| ITF M15 Antalya | 2021/03/20 07:30 | Peter Heller v Matheus Pucinelli De Almeida | 4-6,6-7 |
| ITF M15 Antalya | 2021/03/19 07:30 | Nicholas David Ionel v Peter Heller | 3-6,0-6 |
| ITF M15 Antalya | 2021/04/30 07:15 | Oleksii Krutykh v Jeroen Vanneste | 4-6,6-1,1-6 |
| ITF M15 Antalya | 2021/04/29 10:10 | Jacopo Berrettini v Jeroen Vanneste | 4-6,0-6 |
| ITF M15 Antalya | 2021/04/28 10:10 | Daniil Glinka v Jeroen Vanneste | 1-6,1-6 |
| ITF M15 Antalya | 2021/04/23 07:00 | Jeroen Vanneste v Fabian Marozsan | 3-6,2-6 |
| ITF M15 Antalya | 2021/04/22 09:25 | Jeroen Vanneste v Samuel Vincent Ruggeri | 6-4,6-4 |
| ITF M15 Antalya | 2021/04/21 06:50 | Jeroen Vanneste v Joel Vincent Link | 6-3,6-4 |
| ITF M25 Meerbusch | 2021/04/13 13:30 | Yannick Mertens v Jeroen Vanneste | 6-3,6-4 |
| ITF M15 Antalya | 2021/03/17 10:00 | Alexander Cozbinov v Jeroen Vanneste | 6-0,6-3 |