| UTR Pro Tennis Series Bucharest | 2021/11/30 14:50 | Vasile Antonescu v Olexiy Kolisnyk | 7-6,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/12/10 09:30 | Carlos Gimenez Perez v Olexiy Kolisnyk | 6-2,5-1 |
| UTR Pro Tennis Series Barcelona | 2021/12/09 11:00 | Tomas Curras v Olexiy Kolisnyk | 5-7,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/08 16:32 | Vladimir Popov v Olexiy Kolisnyk | 4-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/06 16:47 | Alen Rogic-Hadzalic v Olexiy Kolisnyk | 2-6,7-6,5-2 |
| UTR Pro Tennis Series Bucharest | 2021/12/05 11:00 | Olexiy Kolisnyk v Dragos Constantin Ignat | 6-7,6-3,4-1 |
| UTR Pro Tennis Series Bucharest | 2021/12/04 09:30 | Olexiy Kolisnyk v Volodymyr Uzhylovskyi | 6-4,3-6,5-3 |
| UTR Pro Tennis Series Bucharest | 2021/12/03 09:30 | Olexiy Kolisnyk v Nicolae Frunza | 7-5,3-6,4-5 |
| UTR Pro Tennis Series Bucharest | 2021/12/02 09:30 | Olexiy Kolisnyk v Ioan Alexandru Chirita | 4-6,5-6 |
| UTR Pro Tennis Series Bucharest | 2021/12/05 12:30 | Stefan Palosi v Vasile Antonescu | 7-6,5-3 |
| UTR Pro Tennis Series Bucharest | 2021/12/04 14:00 | Valentin Vanta v Vasile Antonescu | 6-2,3-6,6-6 |
| UTR Pro Tennis Series Bucharest | 2021/12/03 16:13 | Vasile Antonescu v Ioan Alexandru Chirita | 6-4,6-7,6-1 |
| UTR Pro Tennis Series Bucharest | 2021/12/01 11:00 | Vasile Antonescu v Nicolae Frunza | 6-3,1-6,3-6 |
| UTR Pro Tennis Series Bucharest | 2021/11/30 14:50 | Vasile Antonescu v Olexiy Kolisnyk | 7-6,6-4 |
| UTR Pro Tennis Series Bucharest | 2021/11/29 11:00 | Stefan A Andreescu v Vasile Antonescu | 7-6,6-0 |
| UTR Pro Tennis Series Brasov | 2021/10/31 09:30 | Vasile Antonescu v Stefan A Andreescu | 4-6,7-6,6-3 |
| UTR Pro Tennis Series Brasov | 2021/10/30 09:30 | Vasile Antonescu v Simon A Ivanov | 6-0,6-3 |