Stadium: Court 1 Round: 25 Ground: Clay
| Challenger Segovia | 2021/07/29 14:00 | Hugo Grenier v Carlos Gimeno Valero | 3-6,6-3,6-2 |
| Challenger Segovia | 2021/07/27 13:50 | Carlos Gimeno Valero v Quentin Halys | 6-3,7-6 |
| Challenger Segovia | 2021/07/26 11:05 | Carlos Gimeno Valero v Carlos Gomez-Herrera | 6-3,2-6,6-4 |
| Challenger Segovia | 2021/07/25 15:20 | Carlos Gimeno Valero v Alejandro Mendoza | 6-1,6-1 |
| Challenger Almaty | 2021/06/16 04:00 | Carlos Gimeno Valero v Brayden Schnur | 4-6,6-7 |
| Challenger Almaty | 2021/06/15 04:00 | Chun Hsin Tseng v Carlos Gimeno Valero | 5-7,6-4,2-6 |
| Challenger Almaty | 2021/06/08 06:55 | Evan Furness v Carlos Gimeno Valero | 1-6,6-2,6-3 |
| Challenger Oeiras | 2021/05/28 15:05 | Carlos Gimeno Valero v Holger Rune | 2-6,4-6 |
| ITF M25 Oviedo | 2021/08/30 10:05 | Kuzey Cekirge v Miguel Fernando Pereira | 5-7,6-4,8-10 |
| ITF M25 Oviedo | 2021/08/29 13:45 | Kuzey Cekirge v Yeray A. Pastor | 6-3,7-5 |
| ITF M25 Santander | 2021/08/24 10:15 | Kuzey Cekirge v Oscar Jose Gutierrez | 7-5,2-6,1-6 |
| ITF M25 Santander | 2021/08/23 11:20 | Kuzey Cekirge v Rafael Mazon-Hernandez | 6-1,6-0 |
| ITF M25 Santander | 2021/08/22 11:30 | Kuzey Cekirge v Ilya Rudiukov | 6-4,6-0 |
| UTR Pro Tennis Series Barcelona | 2021/08/14 09:30 | Alejandro Mendoza v Kuzey Cekirge | 6-2,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/08/13 09:30 | Kuzey Cekirge v Jordi Mas De Ugarte | 4-6,0-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/12 07:00 | Kuzey Cekirge v Jay Friend | 4-6,7-5,6-3 |