Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Takasaki | 2024/09/15 06:00 | Naoki Tajima v Jeffrey Fradkin | 6-2,6-3 |
| ITF M25 Sapporo | 2024/09/12 03:05 | Takuya Kumasaka v Naoki Tajima | 7-6,6-2 |
| ITF M25 Sapporo | 2024/09/10 02:30 | Taisei Ichikawa v Naoki Tajima | 6-3,2-6,1-6 |
| ITF M25 Aldershot | 2024/08/11 09:00 | Naoki Tajima v James Story | 4-6,3-6 |
| ITF M25 Roehampton | 2024/08/08 08:55 | Ryan Peniston v Naoki Tajima | 6-2,6-2 |
| ITF M25 Roehampton | 2024/08/06 16:30 | Louis Bowden v Naoki Tajima | 6-7,6-2,1-6 |
| ITF M25 Roehampton | 2024/08/05 12:35 | Naoki Tajima v Kyle Rae | 6-3,6-3 |
| ITF M25 Roehampton Qual | 2024/08/04 14:35 | Naoki Tajima v Daniel Leong Prickett | 6-3,6-0 |
| ITF M25 Takasaki | 2024/09/15 01:00 | Ryusuke Horiuchi v Ko Suzuki | 7-6,6-4 |
| ITF M25 Sapporo | 2024/09/08 05:00 | Ko Suzuki v Ryusuke Horiuchi | 6-3,6-4 |
| ITF M25 Sapporo | 2024/09/01 01:00 | Jeffrey Fradkin v Ryusuke Horiuchi | 6-4,2-6,10-6 |
| ITF M15 Tokyo | 2024/07/08 03:30 | Woobin Shin v Ryusuke Horiuchi | 6-3,6-2 |
| ITF M15 Tokyo | 2024/07/01 01:00 | Ryusuke Horiuchi v Yuta Tomida | 3-6,4-6 |
| ITF M15 Hinode | 2024/03/10 03:00 | Ryusuke Horiuchi v Mattias Southcombe | 3-6,6-3,5-10 |
| ITF M15 Antalya | 2024/02/27 06:30 | Federico Campana v Ryusuke Horiuchi | 6-3,4-6,10-6 |
| ITF M15 Antalya | 2024/02/25 07:00 | Runze Yang v Ryusuke Horiuchi | 1-6,0-6 |