Stadium: Court 4 Round: 26
| ITF Canada F6 MD | 2018/09/06 20:00 | Ehara H / Katayama S v Emhardt C / Shropshire S | 6-4,4-6,6-10 |
| ITF Canada F6 MD | 2018/09/05 19:15 | Bradley J / Findel-Hawkins J v Ehara H / Katayama S | 5-7,4-6 |
| ITF Canada F6 MD | 2018/09/03 18:30 | Chappell N / Corwin F v Ehara H / Katayama S | 7-6,4-6,5-10 |
| 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 |