Stadium: Court A Round: 44 Ground: Hardcourt outdoor
| ITF W15 Hua Hin | 2019/10/16 05:00 | Natthapat Piwbangruk v Mananchaya Sawangkaew | 0-6,0-6 |
| ITF W15 Nonthaburi | 2019/12/04 02:25 | Ayaka Okuno v Natthapat Piwbangruk | 6-0,6-4 |
| ITF W15 Nonthaburi | 2019/11/24 09:25 | Natthapat Piwbangruk v Yu Shan | 4-6,3-6 |
| ITF W25 Hua Hin | 2019/11/11 03:35 | Ramu Ueda v Natthapat Piwbangruk | 6-1,6-2 |
| ITF W25 Hua Hin | 2019/11/04 03:00 | Haruna Arakawa v Natthapat Piwbangruk | 6-1,6-0 |
| ITF W15 Hua Hin | 2019/10/16 05:00 | Natthapat Piwbangruk v Mananchaya Sawangkaew | 0-6,0-6 |
| ITF W15 Hua Hin | 2019/10/09 06:25 | Punnin Kovapitukted v Natthapat Piwbangruk | 6-2,6-1 |
| ITF W25 Nonthaburi | 2019/07/29 02:30 | Natthapat Piwbangruk v Jiahui Chen | 3-6,0-6 |
| ITF W25 Nonthaburi | 2019/07/22 02:30 | Natthapat Piwbangruk v Punnin Kovapitukted | 6-7,0-6 |
| ITF W25 Puné | 2019/12/09 05:30 | Mananchaya Sawangkaew v Punnin Kovapitukted | 1-6,7-6,10-12 |
| ITF W25 Puné | 2019/12/08 05:50 | Mananchaya Sawangkaew v Humera Begum Shaik | 6-0,6-1 |
| ITF W25 Solapur | 2019/12/05 05:40 | Sandra Samir v Mananchaya Sawangkaew | 6-3,6-2 |
| ITF W25 Solapur | 2019/12/04 05:25 | Mananchaya Sawangkaew v Emily Webley-Smith | 6-3,7-6 |
| ITF W25 Hua Hin | 2019/11/14 03:00 | Mananchaya Sawangkaew v Lesley Pattinama Kerkhove | 1-6,6-2,4-6 |
| ITF W25 Hua Hin | 2019/11/12 05:45 | Xinyu Gao v Mananchaya Sawangkaew | 5-7,7-5,6-7 |
| ITF W25 Hua Hin | 2019/11/07 04:35 | Kyoka Okamura v Mananchaya Sawangkaew | 6-3,7-6 |
| ITF W25 Hua Hin | 2019/11/06 04:15 | Mananchaya Sawangkaew v Diana Marcinkevica | 6-3,1-6,6-2 |