| ITF Spain F13 | 05/06 11:30 | 62 | Nikolas S Izquierdo v Vuradin, Lucas | 3-6,4-6 | |
| ITF Spain F8 | 03/18 09:45 | 60 | Nikolas S Izquierdo v Boris Pokotilov | 6-7,6-2,4-6 | |
| ITF Spain F7 | 03/12 08:30 | 62 | Nikolas Sanchez Izquierdo v Ibanez Gallego, Alejandro | 2-6,4-6 | |
| ITF Spain F7 | 03/11 08:30 | 62 | Nikolas Sanchez Izquierdo v Exposito, Adrian | 6-2,4-6,6-2 | |
| ITF Spain F6 Qual | 02/27 13:00 | 62 | Nikolas Sanchez Izquierdo v Billy Harris | 2-6,2-6 | |
| ITF Spain F1 | 01/23 12:00 | 62 | Nikolas Sanchez Izquierdo v Dowson, Dan | 2-6,1-6 | |
| ITF Spain F9 Qual | 04/11 07:00 | - | Nikolas Sanchez Izquierdo v Chavez Villalpando, Luis Diego | 1-6,5-7 |
Nikolás Sánchez Izquierdo (born 17 March 1999) is a Spanish tennis player.
Sánchez Izquierdo has a career high ATP singles ranking of 238 achieved on 19 September 2022 and a career high ATP doubles ranking of 562 achieved on 29 November 2021.