Stadium: Court 3 Round: 54 Ground: Hardcourt outdoor
| Kashiwa, Singles Qualifying M-ITF-JPN-05A | 2024/03/31 01:00 | Ryotaro Taguchi v Mattias Southcombe | 6-2,6-2 |
| Tsukuba, Singles Qualifying M-ITF-JPN-04A | 2024/03/28 03:20 | Ryotaro Taguchi v 신, 산후이 | 6-4,2-6,3-6 |
| Tsukuba, Singles Qualifying M-ITF-JPN-04A | 2024/03/27 06:35 | Jangjun Kim v Ryotaro Taguchi | 2-6,0-6 |
| Tsukuba, Singles Qualifying M-ITF-JPN-04A | 2024/03/25 06:00 | Ryotaro Taguchi v Koki Matsuda | 7-6,6-2 |
| Nishi-Tokyo, Singles M-ITF-JPN-02A | 2024/03/23 01:40 | Ryotaro Taguchi v 시라이시, 히카루 | 2-6,6-4,4-6 |
| Nishi-Tokyo, Singles M-ITF-JPN-02A | 2024/03/22 00:45 | 바이, 이앤 v Ryotaro Taguchi | 3-6,5-7 |
| Nishi-Tokyo, Singles M-ITF-JPN-02A | 2024/03/21 01:00 | Ryotaro Taguchi v Jeamoon Lee | 6-3,5-7,6-3 |
| Nishi-Tokyo, Singles M-ITF-JPN-02A | 2024/03/20 00:50 | Ryotaro Taguchi v 마사바야시, 토모히로 | 6-3,6-3 |
| Kashiwa, Singles Qualifying M-ITF-JPN-05A | 2024/03/31 01:00 | 데 쿠이퍼, 줄리엔 v 오구라, 코스케 | 6-2,6-0 |
| Tsukuba, Singles Qualifying M-ITF-JPN-04A | 2024/03/28 04:20 | 오구라, 코스케 v 시라이시, 히카루 | 2-6,2-6 |
| Tsukuba, Singles Qualifying M-ITF-JPN-04A | 2024/03/27 06:30 | 이토, 타츠수마 v 오구라, 코스케 | 0-6,3-6 |
| Tsukuba, Singles Qualifying M-ITF-JPN-04A | 2024/03/25 06:30 | 카와치, 카즈마 v 오구라, 코스케 | 7-6,0-6,10-12 |
| ITF M15 Hinode | 2024/03/15 01:00 | 오구라, 코스케 v 사켈라리디스, 스테파노스 | 4-6,5-7 |
| ITF M15 Hinode | 2024/03/14 02:30 | 카스텔누오보, 루카 v 오구라, 코스케 | 1-6,4-6 |
| ITF M15 Hinode | 2024/03/12 01:00 | Seungmin Park v 오구라, 코스케 | 5-7,1-6 |
| ITF M25 Traralgon | 2024/02/27 23:00 | 오구라, 코스케 v 리안 지에간, 삼 | 3-6,3-6 |