Stadium: Court 9 Round: 25 Ground: Clay
| ITF M25 Canberra | 2023/03/13 23:00 | Ko Suzuki v Matthew Woerndle | 6-0,6-2 |
| ITF M25 Canberra | 2023/03/12 23:00 | Ko Suzuki v Luke Sorensen | 6-1,6-4 |
| ITF M25 Sapporo | 2022/09/08 01:00 | Ko Suzuki v Ryusuke Horiuchi | 2-6,6-3,3-6 |
| ITF M25 Sapporo | 2022/09/01 02:40 | Ko Suzuki v Tatsuma Ito | 3-6,2-6 |
| ITF M25 Sapporo | 2022/09/01 01:00 | Taki Adachi v Ko Suzuki | 0-6,1-6 |
| ITF M15 Changwon | 2022/08/23 00:50 | Ko Suzuki v Kazuki Nishiwaki | 4-6,3-6 |
| ITF M15 Anseong | 2022/08/17 01:00 | Suk Hyun Choo v Ko Suzuki | 6-2,6-2 |
| ITF M15 Caloundra | 2022/07/27 02:30 | Ko Suzuki v Tai Leonard Sach | 5-7,5-7 |
| ITF M25 Canberra | 2023/03/13 23:00 | Naoki Tajima v Marin Dumitru | 6-3,6-1 |
| ITF M25 Canberra | 2023/03/13 01:30 | Naoki Tajima v Jamie Krattiger | 6-1,6-3 |
| ITF M15 Monastir | 2023/02/12 08:30 | Niccolo Baroni v Naoki Tajima | 6-2,6-2 |
| ITF M15 Monastir | 2023/02/06 10:55 | Aleksi Lofman v Naoki Tajima | 7-5,6-2 |
| ITF M15 Monastir | 2023/02/05 11:00 | Oskari Eerola v Naoki Tajima | 2-6,1-6 |
| ITF M15 Jakarta | 2023/01/24 02:00 | Woobin Shin v Naoki Tajima | 6-0,6-4 |
| ITF M15 Jakarta Qual | 2023/01/23 04:10 | Claudio Renardi Lumanau v Naoki Tajima | 0-6,2-6 |
| ITF M15 Jakarta | 2023/01/17 02:00 | Yunseok Jang v Naoki Tajima | 6-3,3-6,10-4 |