Stadium: Court 2 Round: 44 Ground: Clay
| ITF M25 Pitesti | 2021/08/02 08:30 | Ray Ho v Jesse De Jager | 6-2,4-6,10-5 |
| ITF M15 Castelo Branco | 2021/07/28 08:30 | Marek Gengel v Ray Ho | 6-2,2-6,6-3 |
| ITF M25 Idanha-A-Nova | 2021/07/18 14:30 | Ray Ho v Clement Chidekh | 3-6,4-6 |
| ITF M15 Sofia | 2021/07/04 09:00 | Ray Ho v Dimitrov, Martin | 3-6,6-3,5-10 |
| ITF - M15 Antalya | 2021/06/28 07:55 | Ray Ho v Kolisnyk, Olexiy | 6-3,2-6,9-11 |
| ITF - M15 Antalya | 2021/06/27 06:30 | Ray Ho v Amiri, Farzin Danny | 6-2,6-2 |
| ITF - M15 Antalya | 2021/06/23 11:40 | Ray Ho v Lorenzo Joaquin Rodriguez | 6-3,4-6,4-6 |
| ITF - M15 Antalya | 2021/06/22 07:00 | Sengul, Bora v Ray Ho | 2-6,7-6,9-11 |
| ITF M25 Pitesti | 2021/08/01 13:30 | Bejenaru, Adrian Mateo v Filip, Vladimir | 6-1,5-7,10-12 |
| ITF M15 Sofia | 2021/07/04 06:30 | Minin, Matvey v Filip, Vladimir | 6-2,6-4 |
| UTR Pro Tennis Series Bucharest | 2021/06/04 07:00 | Mihai Razvan Marinescu v Filip, Vladimir | 0-6,3-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 09:00 | Filip, Vladimir v Frunza, Nicolae | 3-2 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 16:00 | Filip, Vladimir v Antonescu, Vasile | 4-6,0-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 09:00 | Filip, Vladimir v Mathieu Scaglia | 6-1,6-0 |
| ITF - M15 Bucarest | 2021/05/25 07:00 | Cezar Cretu v Filip, Vladimir | 6-1,6-1 |
| ITF - M15 Bucarest | 2021/05/24 08:00 | Filip, Vladimir v Pierre Delage | 0-6,6-1,10-2 |