Stadium: Court 6 Round: 27 Ground: Hardcourt outdoor
| ITF Thailand F3 | 2018/09/06 02:00 | Soichiro Moritani v Такаши Саито | 7-5,6-2 |
| ITF Vietnam F2 | 2018/05/07 03:00 | Такаши Саито v Soichiro Moritani | 7-6,3-6,6-3 |
| ITF Japan F3 | 2018/03/18 01:00 | Soichiro Moritani v Такаши Саито | 6-3,3-6,0-6 |