| ITF W40暖武里 | 01/14 02:55 | 28 | Mananchaya Sawangkaew v 阿納斯塔西娅•庫裏科娃 | Walkover | |
| ITF W40暖武里 | 01/13 04:25 | 27 | Mananchaya Sawangkaew v 恰拉揚•布尤卡凱 | 6-1,6-1 | |
| ITF W40暖武里 | 01/12 04:40 | 26 | Mananchaya Sawangkaew v Eri Shimizu | 6-3,1-6,6-1 | |
| ITF W40暖武里 | 01/11 03:00 | 25 | 麗娜•格魯什科 v Mananchaya Sawangkaew | 6-7,4-6 | |
| ITF W40暖武里 | 01/09 03:00 | 54 | 馬烨欣 v Mananchaya Sawangkaew | 1-6,6-7 | |
| ITF W40暖武里資格賽 | 01/08 03:00 | 54 | Chompoothip Jundakate v Mananchaya Sawangkaew | 3-6,1-6 | |
| ITF W40暖武里 | 01/02 06:05 | 54 | Yeonwoo Ku v Mananchaya Sawangkaew | 4-6,6-4,6-3 | |
| ITF W40暖武里 | 01/01 10:40 | 54 | 瑞娅∙巴提亞 v Mananchaya Sawangkaew | 1-6,3-6 | |
| ITF W25新孟買 | 12/18 05:30 | 44 | Mananchaya Sawangkaew v Teja Tirunelveli | Retired | |
| ITF W25索拉普 | 12/16 04:30 | 27 | 阿納斯塔西娅•庫裏科娃 v Mananchaya Sawangkaew | 5-7,6-3,6-4 | |
| ITF W25索拉普 | 12/15 06:35 | 26 | Ishwari Matere Ishwari Matere v Mananchaya Sawangkaew | 1-6,0-6 | |
| ITF W25索拉普 | 12/14 04:25 | 25 | Mananchaya Sawangkaew v 瓦列莉亞∙斯特拉科娃 | 6-3,5-7,7-5 | |
| ITF W25索拉普 | 12/12 04:30 | 54 | Mananchaya Sawangkaew v 埃琳娜 詹姆西迪 | 6-2,7-5 | |
| ITF W25索拉普 | 12/11 04:00 | 54 | Mananchaya Sawangkaew v Arthi Muniyan | 6-4,6-0 | |
| ITF W15沙姆沙伊赫 | 11/27 08:00 | 29 | Mananchaya Sawangkaew v 阿萊娜•法雷 | 1-6,5-7 | |
| ITF W15沙姆沙伊赫 | 11/26 08:00 | 28 | Mananchaya Sawangkaew v 胡何清 | 7-6,6-1 | |
| ITF W15沙姆沙伊赫 | 11/25 10:35 | 27 | 安娜斯塔西婭•阿帕利希納 v Mananchaya Sawangkaew | 0-6,0-6 | |
| ITF W15沙姆沙伊赫 | 11/24 08:00 | 26 | 卡琳•薩爾基索瓦 v Mananchaya Sawangkaew | 0-6,1-6 | |
| ITF W15沙姆沙伊赫 | 11/23 10:10 | 25 | Sumin Kim v Mananchaya Sawangkaew | 1-6,2-6 | |
| ITF W25沙姆沙伊赫 | 11/16 12:25 | 25 | Mananchaya Sawangkaew v Petra Marcinko | 3-6,6-7 | |
| ITF W25沙姆沙伊赫 | 11/15 09:35 | 44 | 胡何清 v Mananchaya Sawangkaew | 3-6,6-7 | |
| ITF W25沙姆沙伊赫 | 11/14 13:00 | 44 | 施晗 v Mananchaya Sawangkaew | 6-2,2-6,4-10 | |
| ITF W25沙姆沙伊赫 | 11/11 08:00 | 27 | 阿利娜•科尼娃 v Mananchaya Sawangkaew | 6-4,7-6 | |
| ITF W25沙姆沙伊赫 | 11/10 10:35 | 26 | Mananchaya Sawangkaew v 伊莎貝拉•絲尼科娃 | 6-1,6-3 | |
| ITF W25沙姆沙伊赫 | 11/09 13:35 | 25 | Mananchaya Sawangkaew v 葉卡捷琳娜•馬克拉科娃 | 6-4,6-4 | |
| ITF W25沙姆沙伊赫 | 11/08 10:30 | 44 | 胡何清 v Mananchaya Sawangkaew | 1-6,5-7 | |
| ITF W25沙姆沙伊赫 | 11/07 11:15 | 44 | 多加•圖爾克曼 v Mananchaya Sawangkaew | 1-6,2-6 | |
| ITF W15沙姆沙伊赫 | 11/04 08:00 | 27 | 李宗鈺 v Mananchaya Sawangkaew | 6-3,5-7,6-3 | |
| ITF W15沙姆沙伊赫 | 11/03 08:00 | 26 | 葉夫根尼娅•布爾蒂納 v Mananchaya Sawangkaew | 6-1,4-6,2-6 | |
| ITF W15沙姆沙伊赫 | 11/01 08:00 | 25 | Barbora Matusova v Mananchaya Sawangkaew | 4-6,1-6 |
Mananchaya Sawangkaew (Thai: มนัญชญา สว่างแก้ว; born 10 July 2002) is a tennis player from Thailand.
She has a career-high singles ranking of 247 by the Women's Tennis Association (WTA), achieved on 4 December 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.