Stadium: Court 4 Round: 45 Ground: Synthetic outdoor
| ITF W25 Jodhpur | 2019/01/30 08:10 | Mai Hontama v Freya Christie | 6-4,2-6,5-7 |
| ITF W25 Petit-Bourg | 2019/01/15 21:30 | Mai Hontama v Sofia Shapatava | 4-6,6-2,5-7 |
| ITF W25 Hong Kong | 2019/01/08 02:00 | Mai Hontama v Chihiro Muramatsu | 2-6,1-6 |
| ITF W25 Hong Kong | 2019/01/07 03:30 | Mai Hontama v Jacqueline Cako | 6-4,6-2 |
| ITF W25 Hong Kong | 2019/01/01 03:30 | Mai Hontama v Caroline Werner | 6-7,4-6 |
| ITF W25 Hong Kong | 2018/12/31 04:00 | Mai Hontama v Michaella Krajicek | 7-5,7-5 |
| Australian Open Women WC | 2018/11/28 02:00 | Mai Hontama v Su Jeong Jang | 1-6,2-6 |
| Australian Open Women WC Qual | 2018/11/27 02:00 | Mai Hontama v Rika Fujiwara | 5-7,6-3,6-3 |
| ITF W15 Shymkent | 2019/02/13 10:55 | Sadafmoh Tolibova v Ayumi Koshiishi | 4-6,6-1,6-1 |
| ITF W15 Palmanova | 2019/02/07 09:30 | Daniella Medvedeva v Ayumi Koshiishi | 6-3,6-1 |
| ITF W15 Palmanova | 2019/02/05 08:30 | Isabel A Gallego v Ayumi Koshiishi | 1-6,2-6 |
| ITF W15 Manacor | 2019/01/31 09:00 | Claudia Hoste Ferrer v Ayumi Koshiishi | 6-0,6-2 |
| ITF W15 Manacor | 2019/01/29 09:00 | Jazmin Ortenzi v Ayumi Koshiishi | 5-7,6-4,2-6 |
| ITF W15 Manacor | 2019/01/25 14:00 | Julia Payola v Ayumi Koshiishi | 6-2,6-2 |
| ITF W15 Manacor | 2019/01/25 09:00 | Jazmin Ortenzi v Ayumi Koshiishi | 2-6,6-1,2-6 |
| ITF W15 Manacor | 2019/01/22 11:30 | Laura Svatikova v Ayumi Koshiishi | 6-3,6-7,3-6 |