| Thailand Open 2019, WS, Qualification | 05/14 06:00 | - | Thamonwan Nithiittikrai v Saloni Mehta | L | 1-2 | |
| Thailand Open 2019, WS, Qualification | 05/14 03:50 | 4 | S Sombutwatthananukool v T Nithiittikrai | W | 0-2 | |
| Thailand Masters 2020, WS | 01/31 09:40 | 5 | 오쿠하라, 노조미 v Thamonwan Nithiittikrai | L | 2-0 | |
| Thailand Masters 2020, WS, Qualification | 01/30 02:55 | 3 | T Nithiittikrai v W Dabczynska | W | 2-0 | |
| Indonesia Masters Women | 10/26 10:35 | 4 | Thamonwan Nithiittikrai v 다카하시, 아수카 | L | 0-2 | |
| Indonesia Masters Women | 10/25 08:30 | 5 | 파라네나야, 타샤 v Thamonwan Nithiittikrai | W | 1-2 | |
| Indonesian Masters Women Qual | 10/24 07:30 | 3 | 루슬리, 이사벨 v Thamonwan Nithiittikrai | W | 0-2 | |
| Kaohsiung Masters Women Qual | 09/26 04:50 | 4 | Thamonwan Nithiittikrai v 린, 잉 천 | L | 0-2 | |
| Thailand Masters 2020, WS | 02/01 08:00 | 5 | 성, 슈오 윤 v Thamonwan Nithiittikrai | L | 2-1 | |
| Thailand Masters 2020, WS, Qualification | 01/31 04:20 | - | Prerana Neeluri v Thamonwan Nithiittikrai | W | 0-2 | |
| Polish Int. Women | 09/22 16:20 | - | 리앙, 팅 유 v Thamonwan Nithiittikrai | L | 2-0 | |
| Belgian International 2019, WS | 09/15 17:20 | - | 누엔, 투이 린 v Thamonwan Nithiittikrai | L | 2-0 |