Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Ulcinj | 2021/09/21 08:00 | Mariano Navone v Keisuke Saitoh | 6-2,7-6 |
| ITF M15 Ulcinj | 2021/09/13 08:00 | Keisuke Saitoh v Alexandre Aubriot | 5-7,4-6 |
| ITF M15 Monastir | 2021/09/01 09:30 | Omni Kumar v Keisuke Saitoh | 6-4,6-2 |
| ITF M15 Monastir | 2021/08/29 10:30 | Keisuke Saitoh v Michel-Alexandre Fortin | 6-3,6-1 |
| ITF M15 Monastir | 2021/08/25 07:30 | Keisuke Saitoh v Jumpei Yamasaki | 1-6,1-6 |
| ITF M15 Monastir | 2021/08/24 07:30 | Keisuke Saitoh v Rishi Reddy | 6-4,6-3 |
| ITF M15 Monastir | 2021/08/23 08:00 | Keisuke Saitoh v Bastian A U Santander | 6-2,6-0 |
| ITF M15 Monastir | 2021/08/22 07:30 | Keisuke Saitoh v Bryan Aguiar Kuntz | 6-4,6-4 |
| ITF USA F17 | 2017/06/15 15:00 | Mitchell Harper v Jesse Witten | 3-6,3-6 |
| ITF USA F17 Qual | 2017/06/12 17:05 | Arnav Mohanty v Mitchell Harper | 3-6,1-6 |
| ITF USA F17 Qual | 2017/06/11 15:00 | Jai Corbett v Mitchell Harper | 2-6,1-6 |
| ITF USA F17 Qual | 2017/06/10 15:30 | Mitchell Harper v Morgan Dill | 7-6,6-3 |
| ITF USA F35 | 2016/10/28 22:00 | Mitchell Harper v Alex Knaff | 6-2,2-6,2-6 |
| ITF Belgium F6 Qual | 2015/07/11 07:00 | Benjamin Dhoe v Mitchell Harper | 6-2,6-1 |
| ITF Netherlands F3 | 2015/06/28 13:00 | Mitchell Harper v Mats Hermans | 6-1,4-6,5-7 |
| ITF Netherlands F3 | 2015/06/27 09:00 | Mitchell Harper v Daniel Pashayan | 6-1,6-3 |