Round: 54 Ground: Clay
| ITF Estonia F1 | 2017/07/25 08:00 | 본 마소우, 게오르지 v Numajiri, Keisuke | 6-2,6-2 |
| ITF Estonia F1 | 2017/07/23 13:00 | Numajiri, Keisuke v 보에르마, 펠레 | 5-7,6-4,6-1 |
| ITF Estonia F1 | 2017/07/23 07:00 | Numajiri, Keisuke v Hedman, Alex | 6-3,6-2 |
| ITF Lithuania F1 | 2017/07/18 12:45 | 그리젤리스, 라우리나스 v Numajiri, Keisuke | 6-1,6-3 |
| ITF Guam F1 | 2017/06/22 01:30 | Numajiri, Keisuke v 문, 주해 | 3-6,3-6 |
| ITF Guam F1 | 2017/06/19 01:15 | 노드스트롬, 퍼 v Numajiri, Keisuke | 1-6,3-6 |
| ITF Japan F7 | 2017/06/03 04:00 | Kato, Shoma v Numajiri, Keisuke | 6-4,6-1 |
| ITF Turkey F19 Qual | 2017/05/14 07:00 | Numajiri, Keisuke v 파블리우첸코브, 알렉산더 | 5-7,6-2,3-6 |
| ITF Estonia F1 | 2017/07/22 10:00 | Parts, Robin Erik v Randpere, Martin Valdo | 7-6,6-4 |
| ITF Poland F4 Qual | 2017/07/03 09:50 | 들제비에키, 카롤 v Randpere, Martin Valdo | 6-1,6-1 |
| ITF Poland F4 Qual | 2017/07/02 08:00 | Randpere, Martin Valdo v 토르, 로빈 | 6-4,4-6,6-3 |
| ITF Poland F4 Qual | 2017/07/01 11:00 | Randpere, Martin Valdo v Grzegorczyk, Jakub | 3-6,6-3,6-1 |
| ITF Romania F4 | 2017/06/18 12:00 | Randpere, Martin Valdo v Cozma, Daniel | 2-6,4-6 |
| ITF Romania F3 | 2017/06/11 10:00 | 마이가, 리카르도 v Randpere, Martin Valdo | 6-0,6-0 |
| ITF Portugal F3 Qual | 2017/03/12 12:30 | Hernando Ruano, Jorge v Randpere, Martin Valdo | 6-3,6-2 |
| ITF Portugal F3 Qual | 2017/03/11 15:00 | Randpere, Martin Valdo v Teixeira, Duarte Nuno | 6-3,7-5 |