Stadium: Court 1 Round: 27 Ground: Clay
| ITF - M25 Kursumlijska Banja - Doubles Hommes | 2024/05/07 09:10 | Frusina/Ghibaudo v Kirilov/Krapivin | 6-2,6-2 |
| ITF - M25 Kursumlijska Banja - Doubles Hommes | 2024/05/08 12:50 | Shandarov/Shandarov v Saitoh/Sumizawa | 0-6,1-6 |
| ITF - M15 Kursumlijska Banja - Doubles Hommes | 2024/05/02 13:45 | Saitoh/Sumizawa v Demanet/Loge | 4-6,7-5,6-10 |
| ITF - M15 Kursumlijska Banja - Doubles Hommes | 2024/04/30 12:35 | Saitoh/Sumizawa v Hess/Valle | 6-2,6-3 |
| ITF - M15 Kashiwa - Doubles Hommes | 2024/04/04 05:00 | Saitoh/Sumizawa v Huang/Jeong | 4-6,4-6 |
| ITF - M15 Kashiwa - Doubles Hommes | 2024/04/02 09:15 | Kono/Okamura v Saitoh/Sumizawa | 1-6,1-6 |
| ITF M25 Takasaki MD | 2023/09/21 07:10 | Kono/Kusuhara v Saitoh/Sumizawa | 6-1,6-3 |
| ITF M25 Takasaki MD | 2023/09/20 04:35 | Hashimoto/Tani v Saitoh/Sumizawa | 3-6,1-6 |
| Hong Kong, Doubles M-ITF-HKG-04A | 2023/09/04 04:30 | Saitoh/Sumizawa v Gerasimov E / Li Z | 1-6,4-6 |