Stadium: Court 16 Round: 62 Ground: Clay
| ITF M15 Heraklion | 2021/06/06 07:30 | Petr Hajek v Ioannis Papounidis | 4-6,7-5,6-10 |
| ITF M15 Heraklion | 2021/05/31 06:30 | Petr Hajek v Toby D. Boyer | 4-6,7-6,6-10 |
| ITF M15 Heraklion | 2021/05/30 09:00 | Petr Hajek v Areg Stepanian | 7-5,6-2 |
| ITF M15 Heraklion | 2021/05/23 10:00 | Petr Hajek v Menelaos Efstathiou | 3-6,2-6 |
| ITF M15 Heraklion | 2021/05/17 07:00 | Petr Hajek v Evangelos Kypriotis | 6-4,0-6,8-10 |
| ITF M15 Sibenik | 2021/04/20 09:15 | Petr Hajek v Marino Jakic | 6-4,4-6,1-10 |
| ITF M15 Sibenik | 2021/04/19 10:35 | Petr Hajek v Giulio Colacioppo | 6-0,6-2 |
| ITF M15 Sibenik | 2021/04/18 10:00 | Petr Hajek v Jan Jermar | 6-2,6-1 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Martins Rocens v Simonas Zukauskas | 6-4,5-7,8-10 |
| ITF M25 Wroclaw | 2021/06/27 11:00 | Moritz Trocker v Simonas Zukauskas | 6-4,6-0 |
| ITF M15 Kouvola | 2021/05/27 11:25 | Luca Castelnuovo v Simonas Zukauskas | 6-1,6-3 |
| ITF M15 Kouvola | 2021/05/26 17:00 | August Ehrnrooth v Simonas Zukauskas | 6-7,6-4,6-7 |
| ITF M15 Kouvola | 2021/05/25 10:25 | Simonas Zukauskas v Leevi Saatela | 1-6,6-3,11-9 |
| ITF M15 Parnu | 2020/11/02 08:00 | Iiro Vasa v Simonas Zukauskas | 6-2,6-3 |
| Baltic Tennis League | 2020/06/19 10:15 | Simonas Zukauskas v Arvis Berzins | 4-6,3-6 |
| Baltic Tennis League | 2020/06/18 08:20 | Simonas Zukauskas v Peteris Vinogradovs | 6-2,6-2 |