Stadium: Court 7 Round: 62 Ground: Clay
| ITF M15 Sharm El Sheikh | 2021/03/24 11:20 | Ondrej Horak v Paul Jubb | 2-6,0-6 |
| ITF M15 Sharm El Sheikh | 2021/03/15 07:30 | Niels Visker v Ondrej Horak | 6-7,7-6,13-11 |
| Challenger Belgrade | 2021/04/11 10:00 | Dmitry Popko v Boris Butulija | 6-2,6-1 |
| ITF M15 Antalya | 2021/03/21 07:00 | Boris Butulija v Bautista Vilicich | 6-4,5-7,9-11 |
| ITF M15 Antalya | 2021/03/14 07:00 | Vladimir Korolev v Boris Butulija | 6-0,6-0 |
| ITF M15 Kazan | 2021/03/09 10:45 | Aleksei Khomich v Boris Butulija | 7-6,6-3 |
| ITF M15 Kazan | 2021/03/08 08:00 | Rail Ibragimov v Boris Butulija | 6-4,4-6,7-10 |
| Eastern European Championship | 2020/11/26 15:20 | Dan Alexandru Tomescu v Boris Butulija | 5-7,2-6 |
| Eastern European Championship | 2020/11/25 16:00 | Duje Kekez v Boris Butulija | 7-6,7-6 |
| Eastern European Championship | 2020/11/23 14:20 | Tomislav Brkic v Boris Butulija | 6-3,6-3 |