Stadium: Court B4 Round: 26 Ground: Hardcourt outdoor
| ITF Women Hammamet | 2018/05/06 09:00 | Pia Cuk v Mana Ayukawa | 6-3,7-5 |
| ITF Women Hammamet | 2018/05/05 09:00 | Victoria Muntean v Mana Ayukawa | 6-4,6-7,6-7 |
| ITF Women Hammamet | 2018/05/04 09:00 | Mana Ayukawa v Cristina Adamescu | 6-2,6-2 |
| ITF Women Hammamet | 2018/05/03 09:30 | Katerina Krizova v Mana Ayukawa | 0-6,4-6 |
| ITF Women Hammamet | 2018/05/02 11:55 | Olga Esteve Mendez v Mana Ayukawa | 6-1,2-6,6-7 |
| ITF Women Hammamet | 2018/04/26 09:00 | Maria Marfutina v Mana Ayukawa | 6-4,7-5 |
| ITF Women Hammamet | 2018/04/24 09:00 | Arina Kuznetsova v Mana Ayukawa | 1-6,2-6 |
| ITF Women Nanjing | 2018/03/20 04:00 | Kai-Lin Zhang v Mana Ayukawa | 6-7,6-1,6-2 |
| ITF Women Nishi-Tama | 2018/03/20 06:45 | Mei Yamaguchi v Yuuki Tanaka | 6-4,3-6,1-6 |
| ITF Women Yokohama Qual | 2018/03/04 07:30 | Moyuka Uchijima v Yuuki Tanaka | 2-6,6-2,6-1 |
| ITF Women Perth Qual | 2018/02/11 02:00 | Monique Barry v Yuuki Tanaka | 2-6,1-6 |
| ITF Women Launceston | 2018/02/07 01:45 | Mai Minokoshi v Yuuki Tanaka | 6-7,6-4,6-4 |
| ITF Women Launceston Qual | 2018/02/04 23:00 | Yuuki Tanaka v Maddison Inglis | 6-1,3-6,6-2 |
| ITF Women Launceston Qual | 2018/02/03 23:00 | Yuuki Tanaka v Catherine Krueger | 6-0,6-0 |
| ITF Women Burnie Qual | 2018/01/28 01:20 | Xiyu Wang v Yuuki Tanaka | 6-4,6-7,6-1 |
| ITF Women Hong Kong | 2018/01/05 02:00 | Yuuki Tanaka v Hiroko Kuwata | 4-6,1-6 |