Stadium: Court 13 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Villena | 2021/01/31 10:30 | Denis Klok v Mario Mansilla Diez | 6-2,6-3 |
| ITF M15 Manacor | 2021/01/05 14:00 | Denis Klok v Alberto Barroso Campos | 1-6,3-6 |
| ITF M15 Manacor | 2021/01/04 11:30 | Denis Klok v Peter Benjamin Privara | 6-0,5-7,15-13 |
| ITF M15 - Antalya | 2020/03/12 07:55 | Sergi Perez Contri v Denis Klok | 6-4,6-2 |
| ITF M15 - Antalya | 2020/03/11 07:00 | Rigele Te v Denis Klok | 3-6,1-6 |
| ITF M15 - Antalya | 2020/02/20 07:00 | Maxime Hamou v Denis Klok | 6-3,3-6,6-3 |
| ITF M15 - Antalya | 2020/02/19 07:00 | Denis Klok v Vasile Antonescu | 4-6,7-6,6-4 |
| ITF M15 - Antalya | 2020/02/15 08:55 | Alexandar Lazarov v Denis Klok | 6-4,7-5 |
| ITF M25 Villena | 2021/01/31 12:00 | Alejandro Manzanera Pertusa v Daniel Merida Aguilar | 4-6,6-4,10-4 |
| ITF M25 Murcia | 2020/03/01 15:00 | Santiago Plaza v Alejandro Manzanera Pertusa | 6-4,6-4 |