Stadium: Court 3 Round: 25 Ground: Clay
| ITF Women Tunis Qual | 2018/04/08 08:30 | Anna Bondar v Hosonuma, Chisa | 6-2,6-2 |
| ITF Women Tunis Qual | 2018/04/07 11:00 | Damergi, Nour v Hosonuma, Chisa | 0-6,0-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/21 08:20 | Hosonuma, Chisa v Gatto-Monticone, Giulia | 1-6,0-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/19 01:00 | Kawasaki, Mitsumi v Hosonuma, Chisa | 6-1,4-6,2-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/18 01:00 | Iwai, Mayu v Hosonuma, Chisa | 6-7,2-6 |
| ITF Women Toyota Qual | 2018/03/11 03:30 | Hosonuma, Chisa v Kim, Na Ri | 3-6,2-6 |
| ITF Women Toyota Qual | 2018/03/10 03:00 | Haine Ogata v Hosonuma, Chisa | 2-6,3-6 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/28 08:30 | Gerlach, Katharina v Hosonuma, Chisa | 6-3,6-4 |
| Orlando, Singles Qualifying W-WITF-USA-02A | 2018/03/07 16:40 | Emma Navarro v de Bernardi, Clothilde | 6-4,6-3 |
| ITF Women Rancho Santa Fe Qual | 2018/02/18 20:30 | Marine Partaud v de Bernardi, Clothilde | 6-1,6-3 |
| Surprise, Singles Qualifying W-WITF-USA-05A | 2018/02/13 17:30 | Chanel Simmonds v de Bernardi, Clothilde | 6-4,7-6 |
| Surprise, Singles Qualifying W-WITF-USA-05A | 2018/02/11 20:00 | Ayline Esina Samardzic v de Bernardi, Clothilde | 1-6,3-6 |
| Glasgow, Qualifications Simples W-WITF-GBR-01A | 2018/01/29 13:00 | Fiona Ferro v de Bernardi, Clothilde | 6-1,6-3 |
| Andrezieux-Boutheon, Qual. Simples W-WITF-FRA-05A | 2018/01/21 12:00 | de Bernardi, Clothilde v Rubini, Stefania | 3-6,1-6 |
| Andrezieux-Boutheon, Qual. Simples W-WITF-FRA-05A | 2018/01/20 12:05 | de Bernardi, Clothilde v Armitano, Mathilde | 6-4,6-1 |
| ITF Women Sant Cugat | 2017/10/31 12:35 | de Bernardi, Clothilde v Paula Badosa | 3-6,2-6 |