Stadium: COURT 6 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Zilina | 2021/09/03 09:25 | Goldsteiner, Peter v Malla, Bastian | 0-6,1-6 |
| 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 Johannesburg | 2021/09/13 13:10 | Simon, Sahar v Wian Roothman | 6-2,7-5 |
| ITF M25 Johannesburg | 2021/09/13 09:15 | Simon, Sahar v Seely, Seth | 6-1,6-2 |
| ITF M25 Johannesburg | 2021/09/12 10:40 | Simon, Sahar v Dagan, Guy | 6-1,6-1 |
| ITF M15 Castelo Branco | 2021/07/27 08:30 | Simon, Sahar v Lambling, Raphael | 3-6,6-3,9-11 |
| ITF M15 Castelo Branco | 2021/07/26 11:00 | Simon, Sahar v Osgar O'Hoisin | 4-6,6-4,10-6 |
| ITF M15 Castelo Branco | 2021/07/25 08:30 | Simon, Sahar v Victor Bini | 6-3,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/19 08:55 | Simon, Sahar v Ben Jones | 4-6,4-6 |
| ITF M25 Idanha-A-Nova | 2021/07/18 10:30 | Graca, Joao v Simon, Sahar | 4-6,6-3,7-10 |