Stadium: Court 11 Round: 25 Ground: Hardcourt outdoor
| Lawrence, Singles W-ITF-USA-34A | 2019/09/12 17:50 | Thamchaiwat, B. v Nefedova, Anastasia Evgenyevna | 1-6,4-6 |
| Lawrence, Singles W-ITF-USA-34A | 2019/09/10 17:00 | Smagina, Sofia v Thamchaiwat, B. | 2-6,2-6 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/07/30 02:30 | Kang, Jia-Qi v Thamchaiwat, B. | 7-6,7-6 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/07/29 02:30 | Natcharee Teerachodjiranon v Thamchaiwat, B. | 0-6,0-6 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/07/23 04:25 | Thamchaiwat, B. v Patcharin Cheapchandej | 3-6,6-1,10-7 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/07/22 07:50 | Jandakate, Chompoothip v Thamchaiwat, B. | 2-6,1-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/12 03:00 | Thamchaiwat, B. v Kim, Da Hye | 6-1,6-3 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/07/11 05:05 | Thamchaiwat, B. v Alicia Smith | 6-3,6-2 |
| ITF W15 Rancho Santa Fe | 2022/05/30 09:00 | Marcinkevica, Deniza v Alyssa Ahn | 6-1,3-6,9-11 |