Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 - Xativa | 2021/08/04 07:00 | Diego F Flores v Inaki Montes-De La Torre | 3-6,2-6 |
| ITF M25 - Idanha-A-Nova | 2021/07/19 13:00 | Diego F Flores v Mario G Fernandez | 6-2,3-6,5-10 |
| ITF M25 - Idanha-A-Nova | 2021/07/18 13:00 | Diego F Flores v Michel-Alexandre Fortin | 6-1,6-0 |
| ITF M25 - Idanha-A-Nova | 2021/07/15 08:00 | Nicolas Moreno De Alboran v Diego F Flores | 6-7,6-4,6-4 |
| ITF M25 - Idanha-A-Nova | 2021/07/14 09:35 | Dhruva Mulye v Diego F Flores | 1-6,1-6 |
| ITF M15 - Almada | 2021/07/09 10:20 | Joao Lucas Reis da Silva v Diego F Flores | 6-4,7-6 |
| ITF M15 - Almada | 2021/07/08 11:15 | Diego F Flores v Takuto Niki | 6-7,6-3,6-4 |
| ITF M15 - Almada | 2021/07/07 10:30 | Diego F Flores v Luis Faria | 6-3,6-7,6-3 |
| ITF M25 - Kottingbrunn | 2021/07/19 14:20 | Tadeas Paroulek v Lukas Pokorny | 6-2,6-4 |
| ITF M25 - Kottingbrunn | 2021/07/18 07:30 | Lukas Pokorny v Vojtech Vlkovsky | 7-6,6-4 |
| ITF M15 - Doboj | 2021/07/13 10:10 | Lukas Pokorny v Carles Hernandez | 6-7,7-5,8-10 |
| ITF M15 - Doboj | 2021/07/12 08:00 | Rrezart Cungu v Lukas Pokorny | 3-6,4-6 |
| ITF M15 - Doboj | 2021/07/11 11:00 | Pavle Daljev v Lukas Pokorny | 5-7,2-6 |
| ITF M15 - Poprad | 2021/07/04 11:00 | Lukas Pokorny v Daniel Siniakov | 6-2,4-6,5-10 |
| ITF M25 - Wroclaw | 2021/06/28 13:00 | Lukas Pokorny v Carl Soderlund | 5-7,4-6 |
| ITF M25 - Wroclaw | 2021/06/27 15:30 | Alan Bojarski v Lukas Pokorny | 2-6,2-6 |