Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Chornomorsk | 2021/08/31 07:00 | Beibit Zhukayev v Julius Tverijonas | 1-6,2-6 |
| ITF M15 Gdynia | 2021/08/10 08:00 | Julius Tverijonas v Alexis Canter | 2-6,2-6 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Julius Tverijonas v Dominik Recek | 6-1,6-2 |
| ITF M15 Parnu | 2021/08/04 09:05 | Julius Tverijonas v Alexander Kotzen | 6-3,5-7,2-6 |
| ITF M15 Tbilisi | 2021/05/19 06:00 | Aleksandr Braynin v Julius Tverijonas | 6-4,7-5 |
| Baltic Tennis League | 2020/06/17 13:30 | Mikelis Libietis v Julius Tverijonas | 3-6,1-6 |
| Baltic Tennis League | 2020/06/16 12:30 | Julius Tverijonas v Siim Troost | 6-4,6-0 |
| Davis Cup | 2020/03/06 16:40 | Julius Tverijonas v Joao Sousa | 1-6,3-6 |
| ITF M15 Chornomorsk | 2021/09/01 07:00 | Roman Boychuk v Georgii Kravchenko | 6-3,6-0 |
| ITF M15 Chornomorsk | 2021/08/30 10:30 | Roman Boychuk v Vasil Yehorov | 6-2,6-1 |
| ITF M15 Chornomorsk | 2021/08/30 07:00 | Anatoliy Petrenko v Roman Boychuk | 2-6,2-6 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Vasil Yehorov v Roman Boychuk | 3-6,1-6 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Gabriel Donev v Roman Boychuk | 6-1,6-0 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Roman Boychuk v Keenan Mayo | 6-0,6-1 |
| ITF M15 Novomoskovsk | 2021/05/23 08:00 | Olexiy Kolisnyk v Roman Boychuk | 6-4,2-6,10-8 |
| ITF M15 Sharm El Sheikh | 2021/02/28 12:30 | Roman Boychuk v Francesco Passaro | 0-6,4-6 |