Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| Kofu, Doubles W-WITF-JPN-02A | 2018/06/15 08:00 | M Doi / M Eguchi v H Arakawa / N Luangnam | 6-2,7-6 |
| Kofu, Doubles W-WITF-JPN-02A | 2018/06/14 05:20 | H Arakawa / N Luangnam v R Kajitani / A Matsumoto | 6-2,4-6,10-5 |
| Kofu, Doubles W-WITF-JPN-02A | 2018/06/13 04:15 | T Dokei / M Ozeki v H Arakawa / N Luangnam | 4-6,1-6 |