Stadium: Court 15 Round: 54 Ground: Hardcourt outdoor
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/17 01:00 | Hosonuma, Chisa v Kim, S. | 6-3,6-3 |
| Karuizawa, Singles W-ITF-JPN-12A | 2019/05/21 04:30 | Kanako Morisaki v Hosonuma, Chisa | 6-3,6-2 |
| Karuizawa, Singles W-ITF-JPN-12A | 2019/05/20 01:00 | Nishizato, Kiko v Hosonuma, Chisa | 1-6,4-6 |
| Kurume, Singles W-ITF-JPN-11A | 2019/05/13 01:55 | Hosonuma, Chisa v Ena Shibahara | 2-6,3-6 |
| ITF W15 Cancun | 2019/03/19 19:00 | Magali Kempen v Hosonuma, Chisa | 6-3,6-2 |
| ITF W15 Cancun | 2019/03/16 13:30 | Maria Camila Osorio Serrano v Hosonuma, Chisa | 6-3,6-1 |
| ITF W15 Cancun | 2019/03/15 13:00 | Hosonuma, Chisa v Weedon, Kirsten-Andrea | 6-4,6-2 |
| ITF W15 Cancun | 2019/03/14 14:55 | Hosonuma, Chisa v Villarreal, Andrea Renee | 6-2,6-1 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/17 01:00 | Lee, Jeongyun v Sul, You-Na | 3-6,6-2,10-8 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/11 01:00 | Um, Seon Young v Lee, Jeongyun | 6-1,6-7,10-4 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/10 01:00 | Lee, Jeongyun v Oshino, Suzuho | 6-3,3-6,10-7 |
| ITF Women Yeongwol | 2018/09/05 01:00 | Lee, Jeongyun v Hwiwon Wi | 5-7,5-7 |
| ITF Women Yeongwol | 2018/08/29 03:35 | Yuka Hosoki v Lee, Jeongyun | 2-6,6-7 |
| ITF Women Gimcheon | 2018/08/21 01:00 | Oh, Soo Bin v Lee, Jeongyun | 6-4,6-3 |
| ITF Women Gimcheon | 2018/08/20 01:00 | Lee, Jeongyun v Park, Seo Yeon | 6-2,6-2 |
| ITF Women Daegu Qual | 2018/06/17 01:00 | Yea, Hyojung v Lee, Jeongyun | 6-2,6-1 |