| UTR Pro Tennis Series Beograd | 2021/07/10 11:30 | Olexiy Kolisnyk v Luka Pavlovic | 4-6,6-1,6-2 |
| UTR Pro Tennis Series Beograd | 2021/07/09 07:30 | Constant De La Bassetiere v Olexiy Kolisnyk | 6-7,4-5 |
| UTR Pro Tennis Series Beograd | 2021/07/08 09:00 | Nikola Slavic v Olexiy Kolisnyk | 1-6,4-6 |
| UTR Pro Tennis Series Beograd | 2021/07/07 10:30 | Dusan Obradovic v Olexiy Kolisnyk | 6-0,5-4 |
| UTR Pro Tennis Series Beograd | 2021/07/05 07:30 | Michalis Sakellaridis v Olexiy Kolisnyk | 3-5 |
| ITF M15 Antalya | 2021/06/30 08:50 | Olexiy Kolisnyk v Louroi Martinez | 6-2,2-6,1-6 |
| ITF M15 Antalya | 2021/06/29 06:30 | Olexiy Kolisnyk v Lorenzo Joaquin Rodriguez | 6-2,6-1 |
| ITF M15 Antalya | 2021/06/28 07:55 | Ray Ho v Olexiy Kolisnyk | 6-3,2-6,9-11 |
| ITF M25 Pensacola | 2021/05/19 15:50 | Dragos Constantin Ignat v Peter Bertran | 4-6,0-6 |
| ITF M25 Pensacola | 2021/05/18 14:25 | Garrett Johns v Dragos Constantin Ignat | 6-7,1-6 |
| ITF M25 Pensacola | 2021/05/17 14:30 | Tommaso Carnevale-Miino v Dragos Constantin Ignat | 2-6,4-6 |
| ITF M25 Naples | 2021/02/23 16:50 | Daniel Dutra Da Silva v Dragos Constantin Ignat | 6-3,6-4 |
| ITF M25 Naples | 2021/02/22 16:00 | Dragos Constantin Ignat v Quentin Folliot | 6-3,6-3 |
| ITF M25 Naples | 2021/02/15 16:00 | Rowland Phillips v Dragos Constantin Ignat | 6-3,7-6 |
| ITF M25 Fayetteville | 2020/11/03 17:30 | Dragos Constantin Ignat v Kiranpal Pannu | 2-6,3-6 |
| ITF M25 Las Vegas | 2020/03/04 17:55 | Dragos Constantin Ignat v Petros Chrysochos | 0-6,2-6 |