| Challenger - Quimper | 2021/02/03 11:00 | Mathias Bourgue v Lukas Lacko | 2-6,2-6 |
| Challenger - Quimper | 2021/01/25 12:30 | Lukas Lacko v Denis Istomin | 3-6,7-6,6-7 |
| Austraalia lahtised meistrivõistlused | 2021/01/11 11:55 | Lukas Lacko v Frederico Ferreira Silva | 3-6,2-6 |
| Challenger - Bratislava | 2020/11/10 16:35 | Lukas Lacko v Sergiy Stakhovsky | 5-7,6-7 |
| Challenger Hamburg | 2020/10/26 12:20 | Lukas Lacko v Nikola Milojevic | 5-7,4-6 |
| Challenger Ismaning | 2020/10/21 18:50 | Prajnesh Gunneswaran v Lukas Lacko | 6-4,5-7,6-4 |
| Challenger Ismaning | 2020/10/20 14:00 | Lukas Lacko v Max Hans Rehberg | 5-7,7-6,6-1 |
| Challenger Biella | 2020/09/29 08:00 | Lukas Lacko v Filip Horansky | 2-6,2-6 |
| Challenger - Quimper | 2021/01/26 13:20 | Arthur Cazaux v Illya Marchenko | 4-6,5-7 |
| ITF M15 Torelló | 2020/12/13 10:30 | Arthur Cazaux v Quentin Robert | 4-6,7-6,6-2 |
| ITF M15 Torelló | 2020/12/12 09:30 | Mattia Bellucci v Arthur Cazaux | 0-6,1-6 |
| ITF M15 Torelló | 2020/12/11 13:00 | Luca Nardi v Arthur Cazaux | 4-6,4-6 |
| ITF M15 Torelló | 2020/12/10 12:00 | Arthur Cazaux v Andrey Kuznetsov | 6-3,6-0 |
| ITF M15 Torelló | 2020/12/09 09:00 | Arthur Cazaux v Sacha Modica | 6-4,6-3 |
| ITF M15 Madrid | 2020/12/03 09:00 | Facundo Diaz Acosta v Arthur Cazaux | 7-6,3-6,6-4 |
| ITF M15 Madrid | 2020/12/02 11:35 | John Echeverria v Arthur Cazaux | 7-6,2-6,4-6 |