Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Tsukuba | 2023/03/27 00:30 | Toru Horie v Taketo Takamisawa | 4-6,6-3,10-4 |
| ITF M25 Loule | 2023/03/01 12:05 | Taketo Takamisawa v Yshai Oliel | 1-6,1-6 |
| ITF M25 Loule | 2023/02/28 10:30 | Alexander Wolfschmidt v Taketo Takamisawa | 4-6,1-6 |
| ITF M25 Loule | 2023/02/27 13:30 | Sil Hollemans v Taketo Takamisawa | 2-6,2-6 |
| ITF M25 Loule | 2023/02/26 12:00 | Moritz Schroeter v Taketo Takamisawa | 4-6,2-6 |
| ITF M25 Faro | 2023/02/20 11:35 | Taketo Takamisawa v Diego F Flores | 5-7,3-6 |
| ITF M25 Faro | 2023/02/19 10:00 | Mikel Martinez v Taketo Takamisawa | 4-6,4-6 |
| ITF M25 Vila Real de Santo Antonio | 2023/02/13 10:50 | Tomas C Abasolo v Taketo Takamisawa | 6-1,6-2 |
| ITF M25 Tsukuba | 2023/03/27 05:00 | Ryotaro Taguchi v Issei Okamura | 7-5,6-2 |
| ITF M25 Tsukuba | 2023/03/27 00:30 | Seiya Nakanishi v Issei Okamura | 2-6,4-6 |
| ITF M15 Aktobe | 2023/03/06 09:40 | Issei Okamura v Mykhailo Mossur | 4-6,6-3,5-10 |
| ITF M15 Aktobe | 2023/02/28 07:30 | Issei Okamura v Max Batyutenko | 6-7,6-4,7-10 |
| ITF M15 Aktobe | 2023/02/27 10:55 | Issei Okamura v Alexander Orlov | 6-2,7-6 |
| ITF M25 Burnie | 2023/02/07 23:00 | Adam Walton v Issei Okamura | 6-3,6-4 |
| ITF M25 Burnie | 2023/02/06 00:00 | Issei Okamura v Stefan Vujic | 7-6,7-6 |
| ITF M25 Burnie | 2023/02/05 01:00 | Issei Okamura v Mason Naumovski | 6-1,6-3 |