Stadium: Court 5 Round: 62 Ground: Clay
| ITF M25 Gandia | 2021/07/19 09:00 | Denis Klok v Nacho Serra Sanchez | 6-7,6-0,2-10 |
| ITF M25 Gandia | 2021/07/18 07:00 | Denis Klok v Hans Albert Schubert | 6-3,6-2 |
| ITF M15 Sofia | 2021/07/07 07:00 | Denis Klok v Aleksandr Braynin | 4-6,3-6 |
| ITF M25 Belgrád | 2021/06/27 07:00 | Denis Klok v George Botezan | 3-6,1-6 |
| ITF M15 Antalya | 2021/04/28 11:40 | Francesco Maestrelli v Denis Klok | 1-6,6-2,6-1 |
| ITF M15 Antalya | 2021/04/27 07:00 | Denis Klok v Vladimir Korolev | 6-1,4-6,10-3 |
| ITF M15 Antalya | 2021/04/26 07:00 | Denis Klok v Vojtech Mares | 6-3,6-2 |
| ITF M15 Antalya | 2021/04/25 07:00 | Denis Klok v Vladislav Ivanov | 6-1,7-6 |
| ITF M25 Gandia | 2021/07/20 08:00 | Carles Hernandez v Lorenzo Joaquin Rodriguez | 6-3,6-1 |
| ITF M25 Gandia | 2021/07/18 07:00 | Yeray A. Pastor v Lorenzo Joaquin Rodriguez | 4-6,1-6 |
| ITF M15 Antalya | 2021/06/29 06:30 | Olexiy Kolisnyk v Lorenzo Joaquin Rodriguez | 6-2,6-1 |
| ITF M15 Antalya | 2021/06/28 07:40 | Lorenzo Joaquin Rodriguez v Thiago Cigarran | 6-3,1-6,10-2 |
| ITF M15 Antalya | 2021/06/27 06:30 | Michalis Sakellaridis v Lorenzo Joaquin Rodriguez | 2-6,4-6 |
| ITF M15 Antalya | 2021/06/25 10:00 | Lorenzo Joaquin Rodriguez v Francisco Comesana | 5-7,3-6 |
| ITF M15 Antalya | 2021/06/24 07:00 | Mircea-Alexandru Jecan v Lorenzo Joaquin Rodriguez | 2-6,2-6 |
| ITF M15 Antalya | 2021/06/23 11:40 | Ray Ho v Lorenzo Joaquin Rodriguez | 6-3,4-6,4-6 |