Stadium: S+S Court Round: 27 Ground: Clay
| ITF M25 Marburg | 2021/07/08 08:50 | Lopez San Martin, Alvaro v Sidane Pontjodikromo | 2-6,6-3,6-3 |
| ITF M25 Marburg | 2021/07/06 16:00 | Lopez San Martin, Alvaro v Gauthier Onclin | 6-3,6-3 |
| ITF M25 Grasse | 2021/06/20 12:50 | Lopez San Martin, Alvaro v Valentin Royer | 7-6,7-5 |
| ITF M25 Grasse | 2021/06/18 08:00 | Lopez San Martin, Alvaro v Emilien Voisin | 6-3,4-6,6-2 |
| ITF M25 Grasse | 2021/06/17 08:00 | Eriksson, Markus v Lopez San Martin, Alvaro | 2-6,1-6 |
| ITF M25 Grasse | 2021/06/16 10:00 | Lopez San Martin, Alvaro v Thirouin, Jean | 6-1,6-1 |
| ITF - M25 Vic | 2021/05/19 13:05 | Lopez San Martin, Alvaro v Pedro Cachin | 1-6,1-6 |
| ITF M15 Valldoreix | 2021/05/16 09:00 | Lopez San Martin, Alvaro v Cuevas, Martin | 2-6,6-1,6-4 |
| ITF M25 The Hague | 2021/07/02 16:05 | Tepavac, Marko v van Rijthoven, Tim | 6-2,6-7,6-7 |
| ITF M25 The Hague | 2021/07/01 14:05 | Kelly, Dayne v Tepavac, Marko | 6-7,3-6 |
| ITF M25 The Hague | 2021/07/01 07:30 | Tepavac, Marko v Daniel De Jonge | 7-5,6-1 |
| ITF M25 Alkmaar | 2021/06/25 11:50 | Tepavac, Marko v Jelle Sels | 5-7,1-6 |
| ITF M25 Alkmaar | 2021/06/24 12:00 | Tepavac, Marko v Ryan Nijboer | 4-6,7-6,6-1 |
| ITF M25 Alkmaar | 2021/06/23 11:15 | Ergi Kirkin v Tepavac, Marko | 4-6,3-6 |
| ITF M15 Skopje | 2021/06/09 10:50 | Tepavac, Marko v Martin Damm | 5-7,3-6 |
| Belgrade, Serbia | 2021/05/22 10:35 | Tepavac, Marko v Lukas Klein | 4-6,1-6 |