Estádio: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF - Japão F8 | 2018/06/14 01:00 | Hikaru Shiraishi v Ryota Tanuma | 2-6,4-6 |
| ITF - M15 Cuala Lumpur | 2023/12/02 02:00 | Yeongseok Jeong v Ryota Tanuma | 7-6,4-6,6-4 |
| ITF - M15 Cuala Lumpur | 2023/12/01 02:00 | Ryota Tanuma v Changli Zhang | 2-6,6-4,6-1 |
| ITF - M15 Cuala Lumpur | 2023/11/28 01:30 | Ryota Tanuma v Antoine Berger | 3-6,7-5,10-0 |
| ITF - M15 Ipoh Perak | 2023/11/25 01:30 | Alexey Zakharov v Ryota Tanuma | 6-3,6-2 |
| ITF - M15 Ipoh Perak | 2023/11/23 04:30 | Ryota Tanuma v Yuta Kawahashi | 6-0,6-4 |
| ITF - M15 Ipoh Perak | 2023/11/22 09:40 | Patrik Oplustil v Ryota Tanuma | 3-6,1-6 |
| ITF - M15 Ipoh Perak | 2023/11/21 04:00 | Ke Hau Hung v Ryota Tanuma | 2-6,2-6 |
| ITF - M15 Ipoh Perak | 2023/11/20 01:30 | Junhyun Lee v Ryota Tanuma | 2-6,2-6 |
| Challenger - Yokkaichi | 2023/11/26 03:25 | Hikaru Shiraishi v Tatsuma Ito | 3-6,4-6 |
| ITF - M15 Ipoh Perak | 2023/11/23 04:55 | Hikaru Shiraishi v Takuya Kumasaka | 6-7,4-6 |
| ITF - M15 Ipoh Perak | 2023/11/23 01:00 | Hikaru Shiraishi v Corban Crowther | 6-0,6-4 |
| ITF - M15 Kuching | 2023/11/17 02:00 | Hikaru Shiraishi v Woobin Shin | 6-4,7-5 |
| ITF - M15 Kuching | 2023/11/16 05:35 | Hikaru Shiraishi v Jumpei Yamasaki | 7-5,6-1 |
| ITF - M15 Kuching | 2023/11/14 03:00 | Hikaru Shiraishi v Sheng Tang | 6-1,6-4 |
| ITF - M25 Cairns | 2023/10/13 01:00 | Jake Delaney v Hikaru Shiraishi | 6-3,6-7,7-6 |
| ITF - M25 Cairns | 2023/10/12 00:00 | Hikaru Shiraishi v Scott Jones | 6-1,4-6,6-4 |