Stadium: Clay Court 3 Round: 25 Ground: Clay
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/15 08:00 | Takayama, Chihiro v Altukhova, Polina | 6-0,6-3 |
| Antalya, Qualifications Simples W-WITF-TUR-46A | 2017/12/10 07:15 | Takayama, Chihiro v Daria Snigur | 1-6,4-6 |
| Antalya, Qualifications Simples W-WITF-TUR-46A | 2017/12/04 09:25 | Takayama, Chihiro v Pysson, Justine | 2-6,5-7 |
| Antalya, Qualifications Simples W-WITF-TUR-46A | 2017/12/03 07:15 | Takayama, Chihiro v Furmaniak, Nina | 6-4,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2017/11/28 13:20 | Eliessa Vanlangendonck v Takayama, Chihiro | 6-2,4-6,6-2 |
| ITF Women Hamamatsu Qual | 2017/10/16 02:00 | Takayama, Chihiro v Hasegawa, Mami | 3-6,5-7 |
| ITF Women Makinohara Qual | 2017/10/08 02:00 | Takayama, Chihiro v Kezuka, Chie | 2-6,1-6 |
| ITF Women Kyoto | 2017/09/05 03:05 | Albanese, Lauren v Takayama, Chihiro | 6-3,6-3 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/15 08:00 | Makhorkina, Anna v Hosonuma, Chisa | 3-6,7-5,4-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/14 07:30 | Hosonuma, Chisa v Beberechi, Andreia | 6-2,6-2 |
| ITF Women Tokyo Qual | 2017/11/06 02:40 | Hosonuma, Chisa v Cheong, Naomi | 6-7,0-6 |
| ITF Women Tokyo Qual | 2017/11/05 03:10 | Choi, Ji-Hee v Hosonuma, Chisa | 6-4,1-6,4-6 |
| ITF Women Tokyo Qual | 2017/11/04 06:35 | Baba, Sari v Hosonuma, Chisa | 4-6,2-6 |
| Karuizawa, Singles W-WITF-JPN-10A | 2017/05/23 01:00 | Kanako Morisaki v Hosonuma, Chisa | 6-3,6-1 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2017/03/25 03:30 | Hosonuma, Chisa v Chiang, Yuki Kristina | 0-6,1-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2017/03/18 01:00 | Hosonuma, Chisa v Yukina Saigo | 6-7,4-6 |