Stadium: Court 3 Round: 28 Ground: Clay
| ITF M15 Antalya MD | 2021/11/30 11:30 | Ilkel/Ozdemir v Matsui/Uesugi | 6-4,1-6,10-12 |
| Challenger Bari MD | 2021/11/24 10:00 | Glasspool/Heliovaara v Matsui/Uesugi | 7-5,6-2 |
| Challenger Helsinki MD | 2021/11/16 11:30 | Matsui/Uesugi v Vasa/Vasa | 4-6,4-6 |
| Challenger Biel MD | 2021/09/21 16:30 | Janvier/Kadhe v Matsui/Uesugi | 7-6,7-6 |
| Challenger Rennes MD | 2021/09/14 14:30 | Matsui/Uesugi v Kadhe/Schnur | 1-6,6-7 |
| Challenger Cassis MD | 2021/09/10 08:30 | Matsui/Uesugi v Verdugo/Reyes-Varela | 6-3,6-7,7-10 |
| Challenger Cassis MD | 2021/09/09 10:35 | Cornea/Tsitsipas v Matsui/Uesugi | 7-5,4-6,8-10 |
| Challenger Cassis MD | 2021/09/08 11:35 | Matsui/Uesugi v Nedunchezhiyan/Raja | 7-5,6-1 |
| ITF M15 Antalya MD | 2021/12/02 11:30 | Malgaroli/Parizzia v Lysov/Vladislav Tasenkov | 6-1,7-5 |
| ITF M15 Antalya MD | 2021/11/30 11:30 | Saritas/Turker v Malgaroli/Parizzia | 5-7,3-6 |