Round: 44 Ground: Hardcourt indoor
| 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 | Grigelis, Laurynas v Numajiri, Keisuke | 6-1,6-3 |
| ITF Guam F1 | 2017/06/22 01:30 | Numajiri, Keisuke v Moon, Ju-Hae | 3-6,3-6 |
| ITF Guam F1 | 2017/06/19 01:15 | Nordstrom, Per 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 Pavlioutchenkov, Alexander | 5-7,6-2,3-6 |
| ITF Turkey F18 | 2017/05/10 08:05 | Dennis Novak v Numajiri, Keisuke | 6-1,6-0 |
| Turkey F14, Singles Qualifying | 2017/04/10 07:30 | Numajiri, Keisuke v Brtnicky, Filip | 1-6,3-6 |
| ITF Estonia F1 | 2017/07/23 07:00 | Boerma, Pelle v Tuomi, Verneri | 3-6,6-0,6-4 |
| ITF Lithuania F1 | 2017/07/16 08:00 | Boerma, Pelle v Losbergs, Mikus | 3-6,1-6 |
| ITF Lithuania F1 | 2017/07/15 10:00 | Zukauskas, Simonas v Boerma, Pelle | 1-6,1-6 |
| ITF Germany F4 | 2017/06/18 08:00 | Boerma, Pelle v Tim Ruehl | 3-6,5-7 |
| Egypt F15, Singles Qualifying | 2017/04/26 09:10 | Merino, Alexander v Boerma, Pelle | 6-3,6-2 |
| Egypt F14, Singles Qualifying | 2017/04/16 12:00 | Syromolotov Netrebin, Yuri v Boerma, Pelle | 6-2,6-1 |
| Egypt F14, Singles Qualifying | 2017/04/15 08:00 | Sardella, Edoardo v Boerma, Pelle | 3-6,4-6 |
| ITF Egypt F13 | 2017/04/08 09:00 | Boerma, Pelle v Vladyslav Orlov | 3-6,4-6 |