Stadium: Central A.Berasategi Round: 26 Ground: Hardcourt outdoor
| ITF M25 Bakio | 2023/06/27 14:30 | Oscar Jose Gutierrez v Liam Branger | 6-3,6-4 |
| ITF M25 Mungia | 2023/06/21 14:30 | Oscar Jose Gutierrez v Kane Bonsach Ganley | 2-6,4-6 |
| ITF M25 Mungia | 2023/06/19 12:45 | Oscar Jose Gutierrez v Pablo Riva | 6-0,6-4 |
| Challenger Lyon | 2023/06/11 10:35 | Dennis Novak v Oscar Jose Gutierrez | 6-0,3-6,6-3 |
| ITF M25 Cordoba | 2023/06/06 16:00 | Oscar Jose Gutierrez v Valentin Royer | 6-4,3-6,2-6 |
| ITF M25 Mataro | 2023/05/24 11:25 | Oscar Jose Gutierrez v Dali Blanch | 3-6,3-6 |
| ITF M25 Gurb | 2023/05/18 15:00 | Tomas C Abasolo v Oscar Jose Gutierrez | 6-3,5-7,6-4 |
| ITF M25 Gurb | 2023/05/17 13:35 | Oscar Jose Gutierrez v Alex M Pujolras | 6-3,6-3 |
| ITF M25 Bakio | 2023/06/27 09:20 | Tomas C Abasolo v Stefanos Sakellaridis | 6-7,4-6 |
| ITF M25 Mungia | 2023/06/23 12:30 | Henrique Rocha v Stefanos Sakellaridis | 6-4,6-3 |
| ITF M25 Mungia | 2023/06/22 18:35 | Kane Bonsach Ganley v Stefanos Sakellaridis | 5-7,3-6 |
| ITF M25 Mungia | 2023/06/21 09:00 | Sergi Perez Contri v Stefanos Sakellaridis | 6-4,6-7,4-6 |
| ITF M25 Martos | 2023/06/17 15:30 | Fajing Sun v Stefanos Sakellaridis | 6-4,6-7,6-3 |
| ITF M25 Martos | 2023/06/16 16:00 | Stefanos Sakellaridis v Julio Cesar Porras | 6-4,6-3 |
| ITF M25 Martos | 2023/06/15 17:50 | Rigele Te v Stefanos Sakellaridis | 6-4,6-7,2-6 |
| ITF M25 Martos | 2023/06/13 15:00 | Stefanos Sakellaridis v Inaki Cabrera Bello | 6-1,1-6,7-6 |