| ITF Malaysia F3 | 2017/10/29 00:00 | Ito, Yuichi v Numajiri, Keisuke | 6-4,6-2 |
| ITF Malaysia F3 | 2017/10/28 01:00 | Numajiri, Keisuke v Alex Hunt | 6-0,6-1 |
| ITF Malaysia F2 | 2017/10/22 01:00 | Lu, Tyler v Numajiri, Keisuke | 6-3,5-7,6-4 |
| ITF Malaysia F2 | 2017/10/21 04:30 | Numajiri, Keisuke v Daniel-Andrea Rodriguez-Redondo | 6-4,6-3 |
| ITF Malaysia F1 | 2017/10/18 02:25 | Numajiri, Keisuke v Podzus, Martins | 2-6,3-6 |
| ITF Malaysia F1 | 2017/10/16 01:00 | Numajiri, Keisuke v Du Toit, Daniel | 6-2,6-3 |
| ITF Malaysia F1 | 2017/10/15 01:00 | Numajiri, Keisuke v Zapata, Sebastian | 6-1,6-1 |
| ITF Turkey F34 | 2017/09/11 10:00 | Sandro Kopp v Numajiri, Keisuke | 6-2,6-2 |
| ITF Vietnam F1 | 2017/11/05 05:00 | Rio Noguchi v Kawakami, Rimpei | 5-7,6-1,6-4 |
| ITF Vietnam F1 | 2017/11/05 02:00 | Matsuzaki, Yutaro v Kawakami, Rimpei | 1-6,6-3,2-6 |
| ITF Turkey F37 | 2017/10/01 08:00 | Kawakami, Rimpei v Horton, Nicholas | 3-6,2-6 |
| ITF Turkey F36 | 2017/09/24 07:30 | Felipe Meligeni Rodrigues Alves v Kawakami, Rimpei | 7-6,6-4 |
| ITF Turkey F36 | 2017/09/23 07:00 | Kawakami, Rimpei v Prehn, Noah | 6-0,6-0 |
| ITF Turkey F35 | 2017/09/21 07:30 | Renta Tokuda v Kawakami, Rimpei | 6-2,6-1 |
| ITF Turkey F35 | 2017/09/19 11:30 | Ergeneman, Gokberk v Kawakami, Rimpei | 6-7,2-6 |
| ITF Turkey F35 | 2017/09/18 11:30 | Kawakami, Rimpei v Shubladze, Vazha | 6-4,6-1 |