Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF Guam F1 MD | 2018/06/23 05:15 | Ehara H / Katayama S v Delaney J / Fancutt T | 6-3,6-3 |
| ITF Guam F1 MD | 2018/06/22 03:10 | Ehara H / Katayama S v Shimizu Y / Takeuchi K | 4-6,7-5,10-6 |
| ITF Guam F1 MD | 2018/06/21 03:00 | Ehara H / Katayama S v Adamson A / Hunt A | 6-0,6-3 |
| ITF Guam F1 MD | 2018/06/20 06:00 | Ehara H / Katayama S v Bajpai M / Hill H | 6-2,6-1 |
| ITF China F8 MD | 2018/06/05 05:15 | Ji A / Yu B v Ehara H / Katayama S | 6-3,5-7,10-4 |
| ITF Japan F6 MD | 2018/04/12 05:45 | Ehara H / Katayama S v Kono Y / Sakai Y | 6-7,4-6 |
| ITF Japan F6 MD | 2018/04/11 04:45 | Ehara H / Katayama S v Kibi Y / Onozawa A | 6-3,6-2 |
| ITF Japan F5 MD | 2018/04/04 07:40 | Ehara H / Katayama S v Fujii S / Ochi M | 6-2,3-6,6-10 |