Stadium: Court 6 Round: 62 Ground: Grass
| ITF Women Hamamatsu Qual | 2017/10/14 01:00 | Ayaka Ozeki v Sae Haraguchi | 2-6,6-4,3-6 |
| ITF Women Kofu Qual | 2017/06/12 03:20 | Michaela Haet v Sae Haraguchi | 6-1,6-3 |
| ITF Women Kofu Qual | 2017/06/11 01:00 | Sae Haraguchi v Shiho Hisamatsu | 6-1,3-6,6-0 |
| ITF Women Kofu Qual | 2017/03/25 03:30 | Sae Haraguchi v Michika Ozeki | 1-6,4-6 |
| ITF Women Hamamatsu Qual | 2017/10/17 01:00 | Ingrid Neel v Mei Yamaguchi | 3-6,6-4,6-3 |
| ITF Women Makinohara Qual | 2017/10/09 00:30 | Mami Hasegawa v Mei Yamaguchi | 7-5,6-1 |
| ITF Women Makinohara Qual | 2017/10/08 03:30 | Utaka Kishigami v Mei Yamaguchi | 2-6,0-6 |
| ITF Women Kyoto | 2017/09/07 04:10 | Mei Yamaguchi v Katy Dunne | 5-7,4-6 |
| ITF Women Kyoto | 2017/09/06 03:00 | Mei Yamaguchi v Ramu Ueda | 6-3,6-3 |
| ITF Women Kyoto | 2017/09/05 06:55 | Ayaka Okuno v Mei Yamaguchi | 4-6,2-6 |
| ITF Women Kyoto | 2017/09/04 01:00 | Suzuka Furukawa v Mei Yamaguchi | 0-6,5-7 |
| ITF Women Kofu Qual | 2017/06/11 05:00 | Kumi So v Mei Yamaguchi | 6-4,7-6 |