| Challenger - Braunschweig | 07/09 14:10 | 14 | Oscar Jose Gutierrez v Karl Friberg | 0-6,6-2,3-6 | |
| Challenger - Troyes | 07/02 15:10 | 14 | Matteo Martineau v Oscar Jose Gutierrez | 6-0,7-5 | |
| ITF - M25 Bakio | 06/28 13:25 | 26 | Oscar Jose Gutierrez v Stefanos Sakellaridis | 3-6,3-6 | |
| ITF - M25 Bakio | 06/27 14:30 | 25 | Oscar Jose Gutierrez v Liam Branger | 6-3,6-4 | |
| ITF - M25 Mungia | 06/21 14:30 | 26 | Oscar Jose Gutierrez v Kane Bonsach Ganley | 2-6,4-6 | |
| ITF - M25 Mungia | 06/19 12:45 | 25 | Oscar Jose Gutierrez v Pablo Riva | 6-0,6-4 | |
| Challenger Lyon | 06/11 10:35 | 45 | [163] Dennis Novak v Oscar Jose Gutierrez [491] | 6-0,3-6,6-3 | |
| ITF - M25 Cordoba | 06/06 16:00 | 25 | [491] Oscar Jose Gutierrez v Valentin Royer [301] | 6-4,3-6,2-6 | |
| ITF - M25 Mataro | 05/24 11:25 | 25 | Oscar Jose Gutierrez v Dali Blanch | 3-6,3-6 | |
| ITF - M25 Gurb | 05/18 15:00 | 26 | Tomas C Abasolo v Oscar Jose Gutierrez | 6-3,5-7,6-4 | |
| ITF - M25 Gurb | 05/17 13:35 | 25 | [493] Oscar Jose Gutierrez v Alex M Pujolras [377] | 6-3,6-3 | |
| ITF - M25 Valldoreix | 05/09 11:50 | 25 | [377] Alex M Pujolras v Oscar Jose Gutierrez [493] | 6-4,7-6 | |
| ITF - M25 Sabadell | 05/02 11:00 | 25 | [487] Oscar Jose Gutierrez v Damien Wenger [401] | 5-7,3-6 | |
| Challenger - Oeiras | 04/16 10:50 | 14 | [481] Oscar Jose Gutierrez v Akira Santillan [413] | 3-6,3-6 | |
| Challenger - Madrid | 04/09 13:00 | 14 | [459] Oscar J. Gutierrez v Daniel Rincon [308] | 5-7,2-6 | |
| ITF - M25 Reus | 04/06 09:00 | 26 | Oscar Jose Gutierrez v Miguel Damas | 2-6,7-5,1-6 | |
| ITF - M25 Reus | 04/05 10:20 | 25 | Oscar Jose Gutierrez v Ignasi De Rueda De Genover | Retired | |
| Challenger - Las Franquesas del Valles | 03/20 09:00 | 19 | [425] Daniel Cox v Oscar J. Gutierrez [432] | 4-6,6-0,7-6 | |
| Challenger - Las Franquesas del Valles | 03/19 11:00 | 14 | Dmitry Kovkin v Oscar J. Gutierrez | 0-6,1-6 | |
| ITF - M25 Palmanova | 03/16 11:40 | 26 | [320] Pablo Llamas Ruiz v Oscar Jose Gutierrez [424] | Retired | |
| ITF - M25 Palmanova | 03/15 14:10 | 25 | Oscar Jose Gutierrez v Bruno P Navarro | 7-6,6-4 | |
| ITF - M25 Torello | 03/02 13:10 | 26 | Edas Butvilas v Oscar Jose Gutierrez | 6-4,6-2 | |
| ITF - M25 Torello | 03/01 12:40 | 25 | Paul Cayre v Oscar Jose Gutierrez | 6-2,4-6,4-6 | |
| Challenger - Rovereto | 02/19 12:05 | 14 | [295] Alejandro Moro Canas v Oscar Jose Gutierrez [425] | 6-4,6-0 | |
| ITF - M25 Vila Real de Santo Antonio | 02/16 11:25 | 26 | [381] Federico Gaio v Oscar Jose Gutierrez [425] | 4-6,6-4,6-2 | |
| ITF - M25 Vila Real de Santo Antonio | 02/15 15:20 | 25 | Timo Legout v Oscar Jose Gutierrez | 4-6,4-6 | |
| Challenger - Tenerife | 02/09 13:05 | 26 | [409] Stefano Travaglia v Oscar Jose Gutierrez [445] | 6-0,6-0 | |
| Challenger - Tenerife | 02/07 12:50 | 25 | [445] Oscar Jose Gutierrez v Marek Gengel [258] | 1-6,6-0,6-3 | |
| Challenger - Tenerife - Calificari | 02/06 15:00 | 19 | [445] Oscar Jose Gutierrez v Christian Harrison [351] | 4-6,6-4,2-6 | |
| Challenger - Tenerife - Calificari | 02/06 10:00 | 14 | [262] Nicolas Alvarez Varona v Oscar Jose Gutierrez [445] | 3-6,3-6 |