Stadium: Court B1 Round: 25 Ground: Hardcourt outdoor
| ITF W80 Granby | 2019/07/25 14:00 | Yuuki Tanaka v Lizette Cabrera | 4-6,3-6 |
| ITF W25 Gatineau | 2019/07/18 14:00 | Quinn Gleason v Yuuki Tanaka | 6-0,7-6 |
| ITF W25 Gatineau | 2019/07/17 14:00 | Holly Verner v Yuuki Tanaka | 0-6,1-6 |
| ITF W25 Saskatoon | 2019/07/09 15:00 | Yuuki Tanaka v Pamela Montez | 4-6,3-6 |
| ITF W25 Daegu | 2019/06/04 01:00 | Yuuki Tanaka v Na Ri Kim | 3-6,6-7 |
| ITF W25 Daegu | 2019/06/03 01:00 | Yuuki Tanaka v Ji Min Park | 6-4,6-2 |
| ITF W25 Goyang | 2019/05/23 02:00 | Yuuki Tanaka v Chanel Simmonds | 2-6,2-6 |
| ITF W25 Goyang | 2019/05/22 05:20 | Mai Minokoshi v Yuuki Tanaka | 5-7,7-6,5-7 |
| ITF W25 Taipei | 2019/07/31 02:00 | Erina Hayashi v Haruka Kaji | 4-6,2-6 |
| ITF W25 Aschaffenburg | 2019/07/18 11:00 | Erina Hayashi v Ekaterina Makarova | 1-6,2-6 |
| ITF W25 Aschaffenburg | 2019/07/17 14:25 | Quirine Lemoine v Erina Hayashi | 2-6,4-6 |
| ITF W25 Biella | 2019/07/02 10:30 | Erina Hayashi v Laura Pigossi | 6-7,3-6 |
| ITF W25 Biella | 2019/07/01 08:00 | Erina Hayashi v Marie Mettraux | 6-4,6-4 |
| ITF W25 Tarvisio | 2019/06/25 09:25 | Erina Hayashi v Rasheeda McAdoo | 3-6,6-2,11-13 |
| ITF W25 Hong Kong | 2019/06/01 08:00 | Ho Ching Wu v Erina Hayashi | 5-7,1-6 |
| ITF W25 Hong Kong | 2019/06/01 02:00 | Erina Hayashi v Momoko Kobori | 7-5,6-2 |