Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF Women Hua Hin | 2018/11/26 03:00 | Natthapat Piwbangruk v Jessie Aney | 3-6,3-6 |
| ITF Women Nonthaburi | 2018/11/12 02:00 | Natthapat Piwbangruk v Misaki Matsuda | 0-6,1-6 |
| ITF Women Nonthaburi | 2018/11/11 02:00 | Natthapat Piwbangruk v Aaliya Ebrahim | 6-3,6-1 |
| ITF Women Nonthaburi | 2018/11/03 02:00 | Pei-Ju Chien v Natthapat Piwbangruk | 6-2,6-0 |
| ITF Women Nonthaburi | 2018/09/02 02:00 | Chanikarn Silakul v Natthapat Piwbangruk | 6-1,6-1 |
| ITF Women Nonthaburi | 2018/09/01 06:00 | Natthapat Piwbangruk v Tanuchaporn Yongmod | 6-3,7-5 |
| ITF Women Nonthaburi | 2018/08/28 07:05 | Ziyue Sun v Natthapat Piwbangruk | 3-6,6-1,6-0 |
| ITF Women Nonthaburi | 2018/08/26 03:30 | Jaipet Anontaweesil v Natthapat Piwbangruk | 1-6,3-6 |
| ITF Women Hua Hin | 2018/11/28 03:00 | Bunyawi Thamchaiwat v Sakura Hosogi | 6-1,6-4 |
| ITF Women Hua Hin | 2018/11/27 03:00 | Sakura Hosogi v Elle Christensen | 6-0,2-6,6-3 |
| ITF Women Antalya | 2018/11/20 08:50 | Sakura Hosogi v Kirsten-Andrea Weedon | 6-7,1-6 |
| ITF Women Antalya | 2018/11/15 08:40 | Sofia Dmitrieva v Sakura Hosogi | 6-3,6-4 |
| ITF Women Antalya | 2018/11/14 07:00 | Sakura Hosogi v Ekaterina Makarova | 6-4,6-3 |
| ITF Women Hamamatsu | 2018/10/14 02:00 | Miyu Nakashima v Sakura Hosogi | 6-4,7-5 |
| ITF Women Makinohara | 2018/10/08 02:45 | Ari Matsumoto v Sakura Hosogi | 7-5,6-1 |
| ITF Women Makinohara | 2018/10/07 03:00 | Mana Kawamura v Sakura Hosogi | 6-1,4-6,4-6 |