03.09.18 | 1st round | Erina Hayashi/Chisa Hosonuma | Sihyeong Cho/Yugyeong Oh | 6-2, 6-2 |  | match details | Yeongwol | Hard |
03.09.18 | 1/4 | Do Hee Bae/Seung-Yeon Hong | Erina Hayashi/Chisa Hosonuma | 6-4, 7-66 |  | match details |
27.08.18 | 1st round | Erina Hayashi/Chisa Hosonuma | Da Ye Kim/Dabin Oh | 6-0, 6-4 |  | match details | Yeongwol | Hard |
27.08.18 | 1/4 | Erina Hayashi/Chisa Hosonuma | Dami Lee/Jin Yoo | 6-1, 6-3 |  | match details |
27.08.18 | 1/2 | Erina Hayashi/Chisa Hosonuma | Dabin Kim/Min-Hwa Yu | 7-62, 6-1 |  | match details |
26.02.18 | 1/4 | Katharina Gerlach/Lena Papadakis | Erina Hayashi/Chisa Hosonuma | 7-61, 7-5 |  | match details | Palmanova | Clay |
26.02.18 | 1st round | Erina Hayashi/Chisa Hosonuma | Isabel Adrover Gallego/Gemma Lairon Navarro | 6-2, 6-4 |  | match details |
19.02.18 | 1/2 | Erina Hayashi/Chisa Hosonuma | Alexandra Perper/Isabella Shinikova | 6-3, 6-3 |  | match details | Palmanova | Clay |
19.02.18 | fin | Erina Hayashi/Chisa Hosonuma | Yukina Saigo/Aiko Yoshitomi | 7-5, 7-5 |  | match details |
19.02.18 | 1st round | Erina Hayashi/Chisa Hosonuma | Noelia Bouzo Zanotti/Angeles Moreno Barranquero | 6-3, 2-6, 10-5 |  | match details |
19.02.18 | 1/4 | Erina Hayashi/Chisa Hosonuma | Vivien Juhaszova/Ioana Loredana Rosca | 6-2, 6-4 |  | match details |
12.02.18 | 1/4 | Erina Hayashi/Chisa Hosonuma | Estrella Cabeza-Candela/Ivonne Cavalle-Reimers | 6-0, 6-2 |  | match details | Manacor | Clay |
12.02.18 | 1/2 | Seone Mendez/Alexandra Perper | Erina Hayashi/Chisa Hosonuma | 6-3, 6-2 |  | match details |
12.02.18 | 1st round | Erina Hayashi/Chisa Hosonuma | Diletta Cherubini/Emma Stauber | 6-2, 6-2 |  | match details |