Stadium: Court 3 Round: 62 Ground: Clay
| ITF M25 Kottingbrunn | 2021/07/19 09:30 | Petros Tsitsipas v Raffael Schaer | 3-6,4-6 |
| ITF M15 Monastir | 2021/02/28 08:00 | Raffael Schaer v Vladislav Melnic | 6-7,2-6 |
| ITF M15 Monastir | 2021/02/21 11:00 | Bruno P Navarro v Raffael Schaer | 6-1,6-0 |
| ITF M15 Monastir | 2021/02/15 10:00 | Raffael Schaer v Taiyo Yamanaka | 4-6,4-6 |
| ITF M15 Monastir | 2021/02/14 10:00 | Louis Herman v Raffael Schaer | 4-6,5-7 |
| ITF M15 Monastir | 2021/02/07 12:30 | Kenneth Raisma v Raffael Schaer | 1-6,7-6,10-5 |
| ITF M15 Monastir | 2021/02/07 08:00 | Luca Teboul v Raffael Schaer | 3-6,1-6 |
| ITF M25 Kottingbrunn | 2021/07/19 10:35 | Jakub Kroslak v Peter Makk | 4-6,6-3,6-10 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Gabriele Moghini v Peter Makk | 3-6,3-6 |
| ITF M15 Antalya | 2021/06/21 07:00 | Fletcher Scott v Peter Makk | 6-4,6-4 |
| ITF M15 Antalya | 2021/06/20 07:00 | Credit Chaiyarin v Peter Makk | 1-6,1-6 |
| ITF M25 Kiseljak | 2021/05/24 11:00 | Peter Makk v Valentin Lapalu | 3-6,4-6 |
| ITF M15 Antalya | 2021/03/25 06:55 | Peter Makk v Daniel Michalski | 1-6,7-5,6-7 |
| ITF M15 Antalya | 2021/03/24 06:30 | Nicolo Turchetti v Peter Makk | 4-6,6-7 |
| ITF M15 Antalya | 2021/03/22 07:00 | Artsiom Dabryian v Peter Makk | 4-6,1-6 |