Stadium: Court 1 Round: 27 Ground: Clay
| ITF M15 Zilina | 2021/09/02 08:00 | Goldsteiner, Peter v Lukas H Lilleengen | 6-7,6-0,6-2 |
| ITF M15 Zilina | 2021/09/01 12:25 | Gonzalo Villanueva v Goldsteiner, Peter | 4-6,3-6 |
| ITF M15 Parnu | 2021/08/05 07:00 | Goldsteiner, Peter v Roncalli, Simone | 5-7,0-6 |
| ITF M15 Parnu | 2021/08/04 07:00 | Goldsteiner, Peter v Mandma, Alexander Georg | 7-5,6-0 |
| ITF M25 Kottingbrunn | 2021/07/21 11:40 | Goldsteiner, Peter v Zsombor Piros | 4-6,1-6 |
| ITF M25 Kottingbrunn | 2021/07/20 10:40 | Goldsteiner, Peter v Vittar, Francisco | 6-3,6-1 |
| ITF M25 Kottingbrunn | 2021/07/19 12:25 | Goldsteiner, Peter v Martin Zeljenka | 6-4,7-6 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Goldsteiner, Peter v Ondrej Valek | 6-2,6-2 |
| ITF M15 Zilina | 2021/09/02 08:00 | Vilardo, Francesco v Malla, Bastian | 1-6,1-6 |
| ITF M15 Zilina | 2021/09/01 08:00 | Lukas Palovic v Malla, Bastian | 2-6,6-7 |
| ITF M15 Bratislava | 2021/08/19 10:55 | Malla, Bastian v Liska, Tomas | 4-6,6-4,2-6 |
| ITF M15 Bratislava | 2021/08/18 08:00 | Malla, Bastian v Zsombor Velcz | 6-2,6-2 |
| ITF M15 Curtea de Arges | 2021/08/11 10:55 | Malla, Bastian v Francisco Comesana | 6-7,1-6 |
| ITF M15 Novi Sad | 2021/08/05 12:00 | Pedro Boscardin Dias v Malla, Bastian | 2-6,6-3,6-3 |
| ITF M15 Novi Sad | 2021/08/04 12:05 | Kijametovic, Aziz v Malla, Bastian | 6-7,4-6 |
| ITF M15 Skopje | 2021/06/02 12:05 | Battaglino, Stefano v Malla, Bastian | 1-6,3-6 |