Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Yanagawa | 2023/12/29 01:00 | Keisuke Saitoh v Duckhee Lee | 3-6,5-7 |
| ITF M15 Yanagawa | 2023/12/28 01:00 | Mikalai Haliak v Keisuke Saitoh | 4-6,3-6 |
| ITF M15 Yanagawa | 2023/12/27 00:30 | Keisuke Saitoh v Taki Adachi | 6-1,6-1 |
| ITF M15 Yanagawa | 2023/12/20 07:15 | Linang Xiao v Keisuke Saitoh | 6-0,6-2 |
| ITF M25 Gold Coast | 2023/11/29 01:30 | Keisuke Saitoh v Blake Mott | 2-6,2-6 |
| ITF M25 Brisbane | 2023/11/22 23:50 | Moerani Bouzige v Keisuke Saitoh | 6-4,2-6,7-5 |
| ITF M25 Brisbane | 2023/11/21 05:25 | Keisuke Saitoh v Thomas Fancutt | 4-6,7-5,6-4 |
| ITF M25 Takasaki | 2023/09/20 01:00 | Leo Vithoontien v Keisuke Saitoh | 6-4,6-3 |
| ITF M25 Edgbaston | 2023/10/15 11:30 | Marcus Walters v William Mclennaghan | 6-1,7-6 |
| ITF M25 Monastir | 2023/09/06 09:05 | Timur Maulenov v William Mclennaghan | 2-6,6-2,6-3 |
| ITF M15 Monastir | 2023/08/27 15:00 | William Mclennaghan v Younes Lalami Laaroussi | 1-6,2-6 |
| ITF M15 Monastir | 2023/08/20 08:00 | Stefan Vujic v William Mclennaghan | 4-6,6-3,11-9 |
| ITF M15 Monastir | 2023/08/14 08:00 | Yusuf Khamis v William Mclennaghan | 6-7,6-3,10-3 |
| ITF M15 Monastir | 2023/08/13 08:00 | William Mclennaghan v Daniel Marincas | 6-3,6-4 |
| ITF M15 Monastir | 2023/07/31 13:00 | Omar Brigida v William Mclennaghan | 6-2,6-3 |
| ITF M15 Monastir | 2023/07/31 08:00 | William Mclennaghan v Theo Herrmann | 6-4,6-2 |