Stadium: Court 2 Round: 26 Ground: Hardcourt indoor
| ITF M15 St Petersburg MD | 2021/04/07 10:55 | Altuna/Kravchuk v Paul/Steinegger | 6-3,3-6,6-10 |
| ATP Antalya MD | 2018/06/26 11:00 | Molteni/Podlipnik-Castillo v Altuna/Kravchuk | 6-4,6-2 |
| ITF M15 St Petersburg MD | 2021/04/10 12:40 | Cozbinov/Freund v Tajima/Zakharov | 6-4,7-5 |
| ITF M15 St Petersburg MD | 2021/04/09 10:00 | Pogosian/Sheyngezikht v Tajima/Zakharov | 4-6,1-6 |
| ITF M15 St Petersburg MD | 2021/04/06 09:50 | Agabigun/Erel v Tajima/Zakharov | 4-6,1-6 |