Stadium: Court 20 Round: 62 Ground: Hardcourt outdoor
| 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 M15 Antalya | 2020/02/06 07:00 | Filip Cristian Jianu v Denis Klok | 6-2,6-1 |
| ITF M15 Getafe Madrid | 2020/11/29 13:00 | Mario Mansilla Diez v Michael Zhu | 3-6,5-7 |
| ITF M15 Benicarlo | 2020/11/22 08:30 | Mariano Alberto Hasenkopf v Mario Mansilla Diez | 6-7,6-1,10-7 |
| ITF M15 Villena | 2020/11/15 11:30 | Mario Mansilla Diez v Alberto Barroso Campos | 3-6,3-6 |
| ITF M15 Sintra | 2020/09/13 10:00 | Mario Mansilla Diez v Albert Roglan | 6-7,1-6 |
| Spanish Summer League | 2020/07/22 11:00 | Mario Mansilla Diez v Jordan Correia | 0-6,4-6 |
| ITF M15 Monastir | 2019/11/25 12:30 | Mario Mansilla Diez v Tom Pisane | 6-3,5-7,7-10 |
| ITF M15 Monastir | 2019/11/25 08:00 | Shinnosuke Hiramatsu v Mario Mansilla Diez | 6-4,5-7,6-10 |
| ITF M15 Monastir | 2019/11/24 08:30 | Pietro Pirolt v Mario Mansilla Diez | 1-6,0-6 |