Stadium: Swiss Post Court Round: 25 Ground: Clay
| 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 Japan F8 | 2018/06/13 02:25 | Takashi Saito v Kousuke Ogura | 6-2,4-6,6-1 |
| ITF Japan F7 | 2018/06/10 01:00 | Takashi Saito v Rio Noguchi | 6-3,6-4 |
| ITF Japan F7 | 2018/06/09 03:20 | Takashi Saito v Gengo Kikuchi | 4-6,7-6,6-3 |
| ITF Japan F7 | 2018/06/08 01:00 | Sora Fukuda v Takashi Saito | 1-6,6-2,4-6 |
| ITF Japan F7 | 2018/06/07 02:00 | Kaito Uesugi v Takashi Saito | 6-0,5-7,5-7 |
| ITF Belgium F7 Qual | 2018/08/06 09:00 | Vadym Ursu v Tom Pisane | 2-6,6-2,6-2 |
| ITF Belgium F7 Qual | 2018/08/05 08:00 | Vadym Ursu v Goran Duquesne | 7-5,6-1 |
| Challenger Prague | 2018/07/22 08:00 | Vadym Ursu v Michal Konecny | 7-6,2-6,6-2 |
| Challenger Prague | 2018/07/21 08:00 | Sadio Doumbia v Vadym Ursu | 7-6,4-6,4-6 |
| ITF Germany F8 | 2018/07/18 10:50 | Vadym Ursu v Manuel Pena Lopez | 1-6,5-7 |
| ITF Germany F8 Qual | 2018/07/16 14:40 | Vadym Ursu v Hamish Stewart | 7-6,6-3 |
| ITF Germany F8 Qual | 2018/07/15 12:30 | Vadym Ursu v Christophe Tholl | 4-6,6-1,6-1 |
| ITF Germany F8 Qual | 2018/07/15 08:30 | Vadym Ursu v Mario Stino | 7-5,6-4 |