| UTR Pro Tennis Series Mulheim | 2021/10/13 10:00 | Edison Ambarzumjan v Yurii Dzhavakian | 3-6,4-6 |
| UTR Pro Tennis Series Mulheim | 2021/10/12 08:30 | Jing L Weng v Yurii Dzhavakian | 5-7,6-1,6-3 |
| UTR Pro Tennis Series Ricany | 2021/09/18 10:30 | Yurii Dzhavakian v Dominik Suc | 4-6,4-6 |
| UTR Pro Tennis Series Ricany | 2021/09/17 09:00 | Filip Duda v Yurii Dzhavakian | 6-4,5-1 |
| UTR Pro Tennis Series Ricany | 2021/09/16 08:30 | Dominik Kellovsky v Yurii Dzhavakian | 6-4,4-5 |
| UTR Pro Tennis Series Ricany | 2021/09/14 07:30 | Adam Kozler v Yurii Dzhavakian | 3-6,6-1,6-2 |
| UTR Pro Tennis Series Ricany | 2021/09/13 10:30 | Yurii Dzhavakian v Martins Podzus | 2-6,6-3,6-7 |
| UTR Pro Tennis Series Ricany | 2021/09/12 07:30 | Yurii Dzhavakian v Jiri Jenicek | 6-7,6-4,6-7 |
| UTR Pro Tennis Series Mulheim | 2021/10/12 08:30 | Edison Ambarzumjan v Constantin Schmitz | 2-6,2-5 |
| UTR Pro Tennis Series Mulheim | 2021/10/11 07:00 | Constantin Schmitz v Tim Sandkaulen | 6-4,7-5 |
| ITF M15 Allershausen | 2021/08/31 11:25 | Constantin Schmitz v Mick Veldheer | 6-7,4-6 |
| ITF M25 Trier | 2021/08/26 09:30 | Constantin Schmitz v Ryan Nijboer | 4-6,2-6 |
| ITF M25 Trier | 2021/08/25 11:40 | Mats Rosenkranz v Constantin Schmitz | 1-6,1-6 |
| ITF M15 Oldenzaal | 2021/08/19 12:35 | Constantin Schmitz v Luke Johnson | 7-5,0-6,3-6 |
| ITF M15 Oldenzaal | 2021/08/18 14:10 | Constantin Schmitz v Zachary Eisinga | 6-3,7-6 |
| ITF M25 Wetzlar | 2021/08/06 15:55 | Constantin Schmitz v Peter Heller | 3-6,7-5,1-6 |