Stadium: Hard 20 Round: 62 Ground: Hardcourt outdoor
| ITF - Heraklion M15 | 2021/06/07 06:30 | Reese Stalder v Roi Ginat | 6-1,6-3 |
| ITF - Heraklion M15 | 2021/06/04 06:30 | Reese Stalder v Yuki Mochizuki | 2-6,5-7 |
| ITF - Heraklion M15 | 2021/06/03 06:30 | Alexander Donski v Reese Stalder | 3-6,6-3,4-6 |
| ITF - Heraklion M15 | 2021/06/02 09:50 | Reese Stalder v Volodymyr Uzhylovskyi | 6-3,7-5 |
| ITF - Heraklion M15 | 2021/06/01 06:30 | Reese Stalder v Yasha Zemel | 6-1,6-4 |
| ITF - Heraklion M15 | 2021/05/31 06:30 | Reese Stalder v Stijn Pel | 6-4,4-6,10-7 |
| ITF - Heraklion M15 | 2021/05/30 09:00 | Reese Stalder v Matthew Dellavedova | 6-3,2-6,10-4 |
| ITF - Heraklion M15 | 2021/05/20 08:35 | Reese Stalder v Edoardo Graziani | 2-6,5-7 |
| ITF - Heraklion M15 | 2021/06/07 06:30 | Matas Vasiliauskas v Lior Goldenberg | 7-5,6-4 |
| ITF - Heraklion M15 | 2021/06/06 07:30 | Jimmy Yang v Matas Vasiliauskas | 1-6,7-5,4-10 |
| ITF - Heraklion M15 | 2021/05/30 09:00 | Matas Vasiliauskas v Ben Jones | 3-6,2-6 |
| ITF - Heraklion M15 | 2021/05/24 06:30 | Federico Arnaboldi v Matas Vasiliauskas | 6-3,6-0 |
| ITF - Monastir M15 | 2021/04/19 12:00 | Louis Tessa v Matas Vasiliauskas | 6-2,6-3 |
| ITF - Monastir M15 | 2021/04/18 11:00 | Matas Vasiliauskas v Ammar Elamin | 6-4,6-3 |
| ITF - Sharm El Sheikh M15 | 2021/03/29 07:30 | Toby D. Boyer v Matas Vasiliauskas | 7-5,6-1 |
| ITF - Sharm El Sheikh M15 | 2021/03/28 07:00 | Matas Vasiliauskas v Sean Hodkin | 6-4,3-6,12-10 |