Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF Thailand F2 | 2018/08/29 04:00 | Takashi Saito v Connor Farren | 6-2,6-1 |
| ITF Thailand F2 | 2018/08/28 07:10 | Takashi Saito v Pol Wattanakul | 6-3,3-6,6-3 |
| Challenger Meerbusch Qual | 2018/08/12 14:25 | Takashi Saito v Alexandre Muller | 3-6,0-6 |
| ITF Belgium F7 | 2018/08/09 09:20 | Takashi Saito v Benjamin Pietri | 6-7,4-6 |
| ITF Belgium F7 | 2018/08/07 16:35 | Takashi Saito v Vadym Ursu | 6-7,6-3,7-6 |
| ITF Germany F10 | 2018/07/31 10:00 | Manuel Guinard v Takashi Saito | 7-6,0-6,6-1 |
| Challenger Tampere | 2018/07/21 11:05 | Ivan Gakhov v Takashi Saito | 6-1,6-3 |
| Challenger Scheveningen Qual | 2018/07/14 10:00 | Takashi Saito v Alejandro Davidovich Fokina | 3-6,2-6 |
| ITF Thailand F2 | 2018/08/29 02:00 | Thanapet Chanta v Patrik Rikl | 3-6,1-6 |
| ITF Thailand F2 | 2018/08/28 05:10 | Kazuma Kawachi v Patrik Rikl | 1-6,0-6 |
| ITF Thailand F1 | 2018/08/24 03:00 | Patrik Rikl v Dayne Kelly | 3-6,4-6 |
| ITF Thailand F1 | 2018/08/23 05:05 | Jirat Navasirisomboon v Patrik Rikl | 1-6,2-6 |
| ITF Thailand F1 | 2018/08/22 04:50 | Nawakarn Khunjan v Patrik Rikl | 2-6,2-6 |
| ITF Thailand F1 | 2018/08/20 05:00 | Pattanapong Borisutpong v Patrik Rikl | 2-6,2-6 |
| Challenger Liberec | 2018/07/31 09:30 | Benjamin Bonzi v Patrik Rikl | 2-6,6-2,6-1 |
| Challenger Prague | 2018/07/25 13:55 | Mats Moraing v Patrik Rikl | 4-6,6-3,6-2 |