| UTR Pro Tennis Series Plovdiv | 2022/02/07 07:30 | Egor Agafonov v Willems, Johann | 6-7,6-3,3-6 |
| UTR Pro Tennis Series Dubai | 2022/01/08 09:00 | Willems, Johann v Marsel Ilhan | 7-6,6-7,1-6 |
| UTR Pro Tennis Series Dubai | 2022/01/07 06:00 | Willems, Johann v Gorazd Srbljak | 6-3,7-5 |
| UTR Pro Tennis Series Dubai | 2022/01/06 07:30 | Willems, Johann v Antonescu, Vasile | 6-3,6-3 |
| UTR Pro Tennis Series Dubai | 2022/01/05 10:30 | Gabriel Donev v Willems, Johann | 2-6,3-6 |
| UTR Pro Tennis Series Dubai | 2022/01/04 06:00 | Ilya Snitari v Willems, Johann | 6-3,6-3 |
| UTR Pro Tennis Series Bucharest | 2021/12/05 08:00 | Jordan Correia Passos Do Carmo v Willems, Johann | 2-6,3-6 |
| UTR Pro Tennis Series Bucharest | 2021/12/04 12:30 | Vlad Andrei Dancu v Willems, Johann | 7-6,1-6,4-5 |
| UTR Pro Tennis Series Barcelona | 2022/02/03 10:00 | Ivan Liutarevich v Vladimir Popov | 6-1,6-2 |
| UTR Pro Tennis Series Barcelona | 2022/02/02 09:30 | Dzhavakian, Yurii v Vladimir Popov | 4-6,5-7 |
| UTR Pro Tennis Series Barcelona | 2021/12/14 08:00 | Vladimir Popov v Ordeig, Roger | 5-7,3-5 |
| UTR Pro Tennis Series Barcelona | 2021/12/13 14:00 | Vladimir Popov v Kuzey Cekirge | 3-6,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/13 09:30 | Vladimir Popov v Ivanov, Simon Anthony | 6-2,3-6,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/12 11:30 | Vladimir Popov v Dimitrov, Martin | 4-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/12 08:00 | Vladimir Popov v Michalis Sakellaridis | 0-6,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/12/11 08:00 | Toledo Bague, Pol v Vladimir Popov | 6-4,3-2 |