| ITF W40 - Йокохама | 12/01 03:10 | 27 | [249] Мананчая Савангкаев v Аяно Шимизу [368] | 6-0,4-6,3-6 | |
| ITF W40 - Йокохама | 11/30 02:25 | 26 | Мананчая Савангкаев v Мей Ямагучи | 6-4,6-4 | |
| ITF W40 - Йокохама | 11/29 06:55 | 25 | [215] Анастасия Тихонова v Мананчая Савангкаев [249] | 6-7,6-1,3-6 | |
| ITF W100 - Такасаки | 11/22 01:30 | 25 | [120] Хариет Дарт v Мананчая Савангкаев [248] | 6-2,6-1 | |
| ITF W100 - Такасаки | 11/21 03:10 | 54 | [248] Мананчая Савангкаев v Aoi Ito [427] | 4-6,4-6 | |
| ITF W100 - Такасаки | 11/20 01:00 | 54 | Мананчая Савангкаев v Химари Сато | 6-1,6-3 | |
| ITF W100 - Такасаки | 11/17 06:00 | 27 | [263] Мананчая Савангкаев v En Shuo Liang [294] | 5-7,6-3,2-6 | |
| ITF W100 - Такасаки | 11/16 05:20 | 26 | [89] Линда Фрухвиртова v Мананчая Савангкаев [263] | 3-6,6-7 | |
| ITF W100 - Такасаки | 11/15 01:00 | 25 | [263] Мананчая Савангкаев v Ya Yi Yang [216] | 7-6,7-5 | |
| ITF W100 - Такасаки | 11/13 07:45 | 54 | [263] Мананчая Савангкаев v Miho Kuramochi [452] | 6-2,6-4 | |
| ITF W100 - Такасаки | 11/13 02:55 | 54 | [263] Мананчая Савангкаев v Ери Шимицу [442] | 6-7,6-3,6-4 | |
| ITF - W25 Кян Даоху | 10/28 02:00 | 28 | Мананчая Савангкаев v Anastasiia Gureva | 6-1,4-6,5-7 |
Mananchaya Sawangkaew (Thai: มนัญชญา สว่างแก้ว; born 10 July 2002) is a tennis player from Thailand.
She has a career-high singles ranking of 267 by the Women's Tennis Association (WTA), achieved on 28 August 2023. Sawangkaew has won two singles titles and one doubles title on the ITF Women's Circuit.
On the ITF Junior Circuit, she achieved a career-high combined ranking of 14, on 28 January 2019. She reached the quarterfinals of the girls' singles draw at the 2019 Australian Open.
Sawangkaew made her debut for Thailand Fed Cup team in 2019.