Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Yanagawa | 2023/12/21 00:30 | Sanhui Shin v Ko Suzuki | 6-1,6-4 |
| ITF M15 Yanagawa | 2023/12/20 03:00 | Shohei Chikami v Ko Suzuki | 3-6,3-6 |
| ITF M15 Yanagawa | 2023/12/18 03:00 | Taki Adachi v Ko Suzuki | 0-6,2-6 |
| ITF M25 Takasaki | 2023/09/18 01:00 | Ryotaro Taguchi v Ko Suzuki | 6-2,7-5 |
| ITF M25 Takasaki | 2023/09/17 01:00 | Mao Takada v Ko Suzuki | 3-6,4-6 |
| ITF M25 Sapporo | 2023/09/11 00:55 | Naoki Tajima v Ko Suzuki | 7-6,4-6,10-8 |
| ITF M25 Sapporo | 2023/09/10 01:00 | Mao Takada v Ko Suzuki | 1-6,3-6 |
| ITF M25 Sapporo | 2023/09/08 04:45 | Daisuke Sumizawa v Ko Suzuki | 7-5,6-2 |
| ITF M15 Yanagawa | 2023/12/25 03:00 | Taketo Takamisawa v Ryusuke Horiuchi | 6-1,6-1 |
| ITF M15 Yanagawa | 2023/12/20 03:00 | Woobin Shin v Taketo Takamisawa | 6-4,6-3 |
| ITF M15 Yanagawa | 2023/12/18 01:00 | Taketo Takamisawa v Alan Sau Franco | 4-6,7-5,12-10 |
| UTR Pro Noda | 2023/10/21 00:00 | Taketo Takamisawa v Ryota Tanuma | 5-7,6-1,3-6 |
| UTR Pro Noda | 2023/10/20 03:00 | Taketo Takamisawa v Marsel Znuderl | 6-3,6-3 |
| UTR Pro Noda | 2023/10/18 03:00 | Taketo Takamisawa v Yuto Takahashi | 6-0,6-1 |
| UTR Pro Noda | 2023/10/17 04:30 | Taketo Takamisawa v Kohsuke Takahashi | 6-2,6-1 |
| UTR Pro Noda | 2023/10/16 02:45 | Daiki Yoshimura v Taketo Takamisawa | 4-6,3-6 |