Stadium: Court A Round: 62 Ground: Hardcourt outdoor
| ITF Women Kofu Qual | 2017/06/11 04:00 | Mayu Iwai v Aoi Ishino | 6-0,6-7,4-6 |
| ITF Women Nishi-Tama | 2017/03/19 01:00 | Yuki Kristina Chiang v Mayu Iwai | 6-2,6-2 |
| Challenger Kaohsiung Qual | 2016/06/14 03:00 | Ayano Shimizu v Mayu Iwai | 6-3,6-3 |
| ITF Women Mallorca | 2018/02/28 08:30 | Katharina Gerlach v Chisa Hosonuma | 6-3,6-4 |
| ITF Women Mallorca | 2018/02/27 09:50 | Molly Helgesson v Chisa Hosonuma | 0-6,6-7 |
| ITF Women Mallorca | 2018/02/25 08:30 | Chisa Hosonuma v Luminita Tutunaru | 6-0,6-2 |
| ITF Women Mallorca | 2018/02/25 08:30 | Chisa Hosonuma v Svenja Ochsner | 6-3,7-5 |
| ITF Women Mallorca | 2018/02/24 10:00 | Chisa Hosonuma v Keira Blackbeard | 6-1,6-1 |
| ITF Women Mallorca | 2018/02/23 08:10 | Chisa Hosonuma v Marina Bassols Ribera | 7-6,6-7,5-7 |
| ITF Women Mallorca | 2018/02/20 09:35 | Chisa Hosonuma v Sonya Latycheva | 6-4,6-3 |
| ITF Women Mallorca Qual | 2018/02/19 08:30 | Chisa Hosonuma v Angeles Moreno Barranquero | 6-4,6-3 |