| UTR Pro Tennis Series Barcelona | 2021/08/05 08:30 | Olexiy Kolisnyk v Miguel Fernando Pereira | 4-6,6-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/04 11:30 | Alberto C Sanchez v Olexiy Kolisnyk | 0-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/03 10:00 | Alvaro Bueno Gil v Olexiy Kolisnyk | 1-6,6-3,6-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/18 06:00 | Ilya Snitari v Olexiy Kolisnyk | 7-5,3-6,2-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/17 07:00 | Gorazd Srbljak v Olexiy Kolisnyk | 0-6,6-4,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/16 09:00 | Olexiy Kolisnyk v Dmitrii Vasilev | 6-3,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/15 07:30 | Olexiy Kolisnyk v Yanais Laurent | 6-4,3-6,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/14 10:30 | Anthony Genov v Olexiy Kolisnyk | 1-4 |
| UTR Pro Tennis Series Barcelona | 2021/08/05 08:30 | Noah Regas v Daniel Sancho Arbizu | 4-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/04 11:30 | Alvaro Bueno Gil v Daniel Sancho Arbizu | 5-7,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/02 07:00 | Miguel Fernando Pereira v Daniel Sancho Arbizu | 6-2,7-6 |