Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF Japan F5 | 2018/03/31 00:30 | Takashi Saito v Ken Onoda | 3-6,4-6 |
| ITF Japan F4 | 2018/03/24 02:00 | Masamichi Imamura v Takashi Saito | 6-4,6-4 |
| ITF Japan F3 | 2018/03/19 02:15 | Masaya Kobayashi v Takashi Saito | 6-4,4-6,6-4 |
| ITF Japan F3 | 2018/03/18 01:00 | Soichiro Moritani v Takashi Saito | 6-3,3-6,0-6 |
| ITF Japan F3 | 2018/03/17 04:00 | Kenta Kurita v Takashi Saito | 7-5,3-6,0-6 |
| ITF Japan F2 | 2018/03/13 04:45 | Takashi Saito v Naoki Nakagawa | 4-6,6-3,1-6 |
| ITF Japan F1 | 2018/03/10 02:00 | Takashi Saito v Wishaya Trongcharoenchaikul | 4-6,7-5,4-6 |
| ITF Japan F1 | 2018/03/08 03:10 | Yuichi Ito v Takashi Saito | 2-6,4-6 |
| ITF Italy F8 Qual | 2018/04/14 13:00 | Patrik Rikl v Joao M Nusdeo | 6-2,6-3 |
| ITF Greece F5 | 2018/03/29 10:35 | Jonathan Gray v Patrik Rikl | 6-4,6-0 |
| ITF Greece F5 | 2018/03/28 06:00 | Patrik Rikl v Maksim Tikhomirov | 3-6,7-6,7-5 |
| ITF Bahrain F1 | 2018/03/23 14:10 | Patrik Rikl v Jelle Sels | 7-6,6-7,4-6 |
| ITF Bahrain F1 | 2018/03/22 12:00 | Thomas Colautti v Patrik Rikl | 6-4,3-6,3-6 |
| ITF Bahrain F1 | 2018/03/21 08:00 | Antoine Walch v Patrik Rikl | 3-6,4-6 |
| ITF India F2 | 2018/03/05 06:00 | Patrik Rikl v Mukund Sasikumar | 3-6,3-6 |
| ITF India F1 | 2018/03/02 07:00 | Patrik Rikl v Arjun Kadhe | 6-7,6-4,4-6 |