Stadium: Court 2 Round: 19 Ground: Hardcourt outdoor
| UTR Pro Miki | 2023/04/23 03:23 | Henrik Heise Korsgaard v Ryotaro Taguchi | 6-3,6-2 |
| UTR Pro Miki | 2023/04/22 03:30 | Taketo Takamisawa v Ryotaro Taguchi | 7-6,4-6,5-7 |
| UTR Pro Miki | 2023/04/21 07:00 | Kento Tagashira v Ryotaro Taguchi | 2-6,2-6 |
| UTR Pro Miki | 2023/04/20 03:30 | Mizuki Kawada v Ryotaro Taguchi | 1-6,3-6 |
| UTR Pro Miki | 2023/04/19 03:30 | Brody Nejedly v Ryotaro Taguchi | 0-6,1-5 |
| UTR Pro Miki | 2023/04/17 02:00 | Hikaru Takahashi v Ryotaro Taguchi | 5-7,2-6 |
| UTR Pro Miki | 2023/04/16 02:31 | Henrik Heise Korsgaard v Ryotaro Taguchi | 4-6,6-3,3-6 |
| UTR Pro Miki | 2023/04/15 05:34 | Ryotaro Matsumura v Ryotaro Taguchi | 6-4,3-6,3-6 |
| ITF M25 Kashiwa | 2023/04/02 00:30 | Ko Suzuki v Taiyo Yamanaka | 1-6,6-3,11-13 |
| ITF M25 Tsukuba | 2023/03/29 04:15 | Hiroki Moriya v Ko Suzuki | 6-3,6-1 |
| ITF M25 Tsukuba | 2023/03/27 05:30 | Ko Suzuki v Shunsuke Nakagawa | 6-2,6-4 |
| ITF M25 Tsukuba | 2023/03/27 00:30 | Yuttana Charoenphon v Ko Suzuki | 2-6,2-6 |
| ITF M25 Canberra | 2023/03/20 22:50 | Ko Suzuki v Seonyong Han | 6-3,2-6,6-10 |
| ITF M25 Canberra | 2023/03/19 23:00 | Ko Suzuki v Luke Sorensen | 6-1,6-2 |
| ITF M25 Canberra | 2023/03/14 23:00 | Ko Suzuki v Naoki Tajima | 2-6,5-7 |
| ITF M25 Canberra | 2023/03/13 23:00 | Ko Suzuki v Matthew Woerndle | 6-0,6-2 |