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