| ITF W15沙姆沙伊赫 | 04/06 08:00 | 28 | Mananchaya Sawangkaew v 馬加裏•科姆普恩 | 6-4,1-6,2-6 | |
| ITF W15沙姆沙伊赫 | 04/05 08:00 | 27 | Mananchaya Sawangkaew v Maria Daniels Sierra | 6-3,6-2 | |
| ITF W15沙姆沙伊赫 | 04/04 08:00 | 26 | Mananchaya Sawangkaew v 巴爾博拉 Miklova | 6-2,7-5 | |
| ITF W15沙姆沙伊赫 | 04/03 10:40 | 25 | 娜嘉•吉查裏絲特 v Mananchaya Sawangkaew | 2-6,4-6 | |
| ITF W15沙姆沙伊赫 | 03/28 08:00 | 26 | 阿納斯塔西娅•庫裏科娃 v Mananchaya Sawangkaew | 6-4,6-2 | |
| ITF W15沙姆沙伊赫 | 03/26 08:00 | 25 | Mai Napatt Nirundorn v Mananchaya Sawangkaew | 2-6,2-6 | |
| 聯合會盃 2019 | 02/06 05:00 | 1 | 紮裏納•狄雅絲 v Mananchaya Sawangkaew | 6-1,6-3 | |
| ITF華欣 女子 | 12/05 03:00 | 26 | Bunyawi Thamchaiwat v Mananchaya Sawangkaew | 7-6,7-5 | |
| ITF華欣 女子 | 12/04 03:00 | 25 | Dolavee Tumthong v Mananchaya Sawangkaew | 2-6,3-6 | |
| ITF華欣 女子 | 11/30 03:00 | 28 | Mananchaya Sawangkaew v 努尼達•盧安格納姆 | 7-5,0-6,3-6 | |
| ITF華欣 女子 | 11/29 03:00 | 27 | Bunyawi Thamchaiwat v Mananchaya Sawangkaew | 1-6,7-5,6-7 | |
| ITF華欣 女子 | 11/28 03:00 | 26 | Chie Kezuka v Mananchaya Sawangkaew | 4-6,0-6 | |
| ITF華欣 女子 | 11/27 04:25 | 25 | Ashmitha 埃瓦拉穆河 v Mananchaya Sawangkaew | 0-6,4-6 | |
| ITF華欣 女子 | 06/06 04:05 | 26 | Mananchaya Sawangkaew v Shuyue Ma | 6-7,1-6 | |
| ITF華欣 女子 | 06/05 05:15 | 25 | 伊万娜•尤洛維奇 v Mananchaya Sawangkaew | Retired | |
| ITF華欣 女子 | 05/12 02:30 | 29 | Bunyawi Thamchaiwat v Mananchaya Sawangkaew | Retired | |
| ITF華欣 女子 | 05/11 02:30 | 28 | Mananchaya Sawangkaew v 祖紮娜∙茲洛霍娃 | 3-6,6-1,6-0 | |
| ITF華欣 女子 | 05/10 04:30 | 27 | Mananchaya Sawangkaew v 努尼達•盧安格納姆 | 6-1,6-2 | |
| ITF華欣 女子 | 05/09 03:20 | 26 | Mananchaya Sawangkaew v 卓宜岑 | 6-1,2-6,6-2 | |
| ITF華欣 女子 | 05/07 08:55 | 25 | 齊爾•德賽 v Mananchaya Sawangkaew | 6-2,5-7,1-6 | |
| ITF華欣資格賽 女子 | 04/30 02:30 | 44 | Mananchaya Sawangkaew v Xinyu Cai | 6-2,2-6,0-6 | |
| ITF華欣資格賽 女子 | 04/29 06:00 | 44 | Mananchaya Sawangkaew v Chanikarn Silakul | 6-2,7-5 | |
| ITF華欣 女子 | 07/24 04:00 | 25 | 戈薩爾 Ainitdinova v Mananchaya Sawangkaew | 0-6,7-5,6-2 | |
| ITF華欣 女子 | 05/08 03:00 | 25 | Mananchaya Sawangkaew v 格爾曼•考爾•桑恩迪 | 2-6,7-6,2-6 | |
| ITF華欣 女子 | 05/03 03:00 | 26 | 哈裏特•達特 v Mananchaya Sawangkaew | 6-3,6-3 | |
| ITF華欣 女子 | 05/01 03:00 | 25 | 彭寧•科瓦皮圖克特 v Mananchaya Sawangkaew | 6-7,4-6 | |
| ITF華欣資格賽 女子 | 04/23 04:15 | 54 | 西本惠 v Mananchaya Sawangkaew | 6-2,6-0 | |
| ITF華欣資格賽 女子 | 04/22 06:30 | 54 | Mananchaya Sawangkaew v 艾麗西亞∙巴內特 | 4-6,7-6,6-4 | |
| ITF華欣 女子 | 11/22 03:00 | 25 | 馬力湯川 v Mananchaya Sawangkaew | 6-1,6-1 |
Mananchaya Sawangkaew (Thai: มนัญชญา สว่างแก้ว; born 10 July 2002) is a tennis player from Thailand. She has a career-high WTA singles ranking of world No. 192, achieved on 20 May 2024 and a doubles ranking of No. 546, achieved on 31 July 2023.
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.