Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M25 - Kashiwa | 2023/04/02 04:00 | Yuichiro Inui v Hiroyasu Ehara | 4-6,2-6 |
| ITF M15 - Antalya | 2023/03/14 11:20 | Gabriele Pennaforti v Hiroyasu Ehara | 6-0,6-2 |
| ITF M15 - Antalya | 2023/03/13 16:10 | Jiri Jenicek v Hiroyasu Ehara | 2-6,1-6 |
| ITF M15 - Antalya | 2023/03/12 10:30 | Filippo Verdese v Hiroyasu Ehara | 1-6,1-6 |
| ITF M15 - Antalya | 2023/03/01 07:00 | Hiroyasu Ehara v Dominik Kellovsky | 3-6,2-6 |
| ITF M15 - Antalya | 2023/02/28 07:00 | Igor Gimenez v Hiroyasu Ehara | 6-7,3-6 |
| ITF M15 - Antalya | 2023/02/27 08:25 | Egor Khotchenkov v Hiroyasu Ehara | 2-6,4-6 |
| ITF M15 - Antalya | 2023/02/26 07:00 | Arkady Svyatov v Hiroyasu Ehara | 2-6,1-6 |
| ITF M25 - Tsukuba | 2023/03/30 01:00 | Renta Tokuda v Naoki Tajima | 6-0,6-4 |
| ITF M25 - Tsukuba | 2023/03/27 06:00 | Naoki Tajima v Ryotaro Matsumura | 6-3,0-6,10-4 |
| ITF M25 - Tsukuba | 2023/03/27 00:30 | Taiyo Yamanaka v Naoki Tajima | 6-4,5-7,8-10 |
| ITF M25 - Canberra | 2023/03/22 03:45 | Dane Sweeny v Naoki Tajima | 6-1,6-3 |
| ITF M25 - Canberra | 2023/03/20 23:00 | Naoki Tajima v Blake Bayldon | 6-3,6-0 |
| ITF M25 - Canberra | 2023/03/20 01:30 | Naoki Tajima v Mason Naumovski | 6-3,7-6 |
| ITF M25 - Canberra | 2023/03/15 23:00 | Dayne Kelly v Naoki Tajima | 6-1,6-2 |
| ITF M25 - Canberra | 2023/03/14 23:00 | Ko Suzuki v Naoki Tajima | 2-6,5-7 |