| ITF W75福冈 | 05/09 02:00 | 26 | [276] Aoi Ito v Mananchaya Sawangkaew [214] | 6-3,6-1 | |
| ITF W75福冈 | 05/07 01:00 | 25 | [390] Yuki Naito v Mananchaya Sawangkaew [214] | 3-6,4-6 | |
| ITF W100岐阜 | 04/30 06:35 | 25 | [223] Mananchaya Sawangkaew v 加治遥 [270] | 1-6,6-3,3-6 | |
| ITF W100 东京 | 04/25 01:50 | 26 | [223] Mananchaya Sawangkaew v 内岛萌夏 [130] | 1-6,7-6,4-6 | |
| ITF W100 东京 | 04/24 05:45 | 25 | [223] Mananchaya Sawangkaew v 亚历山大•克鲁尼奇 [110] | 6-4,2-6,6-3 | |
| ITF W35大版 | 04/13 02:45 | 28 | [371] 石井沙耶香 v Mananchaya Sawangkaew [227] | 7-5,7-5 | |
| ITF W35大版 | 04/12 01:00 | 27 | [291] Aoi Ito v Mananchaya Sawangkaew [227] | 3-6,4-6 | |
| ITF W35大版 | 04/11 01:00 | 26 | [410] Miho Kuramochi v Mananchaya Sawangkaew [227] | 4-6,6-3,5-7 | |
| ITF W35大版 | 04/10 05:05 | 25 | Hikaru Sato v Mananchaya Sawangkaew | 6-7,4-6 | |
| ITF W50柏市 | 04/02 05:05 | 25 | Mananchaya Sawangkaew v Chihiro Muramatsu | 6-3,5-7,4-6 | |
| ITF W50甲府 | 03/30 01:00 | 28 | [247] Mananchaya Sawangkaew v 李亚轩 [413] | 4-6,4-6 | |
| ITF W50甲府 | 03/29 04:30 | 27 | 麦根•玛纳斯 v Mananchaya Sawangkaew | 6-3,4-6,4-6 | |
| ITF W50甲府 | 03/28 00:55 | 26 | [357] 佐藤南帆 v Mananchaya Sawangkaew [247] | 7-6,4-6,3-6 | |
| ITF W50甲府 | 03/27 01:55 | 25 | [247] Mananchaya Sawangkaew v Sujeong Jang [215] | 7-5,6-4 | |
| ITF W35印多尔 | 03/16 04:30 | 28 | [239] Mananchaya Sawangkaew v 达利拉•扎库帕维奇 [213] | 6-7,3-6 | |
| ITF W35印多尔 | 03/15 04:30 | 27 | [457] 杰奎琳•卡巴积•阿瓦德 v Mananchaya Sawangkaew [239] | 2-6,1-6 | |
| ITF W35印多尔 | 03/14 04:00 | 26 | [326] 萨哈贾•亚玛拉帕利 v Mananchaya Sawangkaew [239] | 1-6,4-6 | |
| ITF W35印多尔 | 03/13 04:00 | 25 | [330] Rutuja 布霍萨勒 v Mananchaya Sawangkaew [239] | 2-6,0-6 | |
| ITF W75伯尔尼 | 02/08 02:45 | 26 | [247] Mananchaya Sawangkaew v 马雅•琼特 [446] | 3-6,1-6 | |
| ITF W75伯尔尼 | 02/06 01:10 | 25 | [247] Mananchaya Sawangkaew v 京花冈村 [327] | 6-3,6-3 | |
| ITF W75伯尔尼 | 02/01 23:45 | 27 | [260] Mananchaya Sawangkaew v 普瑞希拉•贺恩 [201] | 6-4,0-6,2-6 | |
| ITF W75伯尔尼 | 02/01 01:45 | 26 | [260] Mananchaya Sawangkaew v 伊万娜·波波维奇 [488] | 6-4,2-6,7-6 | |
| ITF W75伯尔尼 | 01/29 23:00 | 25 | [260] Mananchaya Sawangkaew v 阿兰娜•帕纳比 [258] | 6-2,6-0 | |
| ITF W50暖武里 | 01/14 03:00 | 29 | [266] Mananchaya Sawangkaew v 安东尼娅•鲁兹奇 [211] | 6-1,2-6,6-2 | |
| ITF W50暖武里 | 01/13 02:55 | 28 | [451] 石井沙耶香 v Mananchaya Sawangkaew [266] | 6-3,2-6,5-7 | |
| ITF W50暖武里 | 01/12 02:55 | 27 | [452] 松田弥树 v Mananchaya Sawangkaew [266] | 6-4,4-6,1-6 | |
| ITF W50暖武里 | 01/11 04:50 | 26 | [373] Aoi Ito v Mananchaya Sawangkaew [266] | 7-6,2-6,3-6 | |
| ITF W50暖武里 | 01/10 03:00 | 25 | [307] 戴安娜•马辛科维卡 v Mananchaya Sawangkaew [266] | 3-6,2-6 | |
| ITF W50暖武里 | 01/03 05:50 | 25 | [266] Mananchaya Sawangkaew v 埃纳 Shibahara [14] | 3-6,6-7 | |
| ITF W40横滨 | 12/01 03:10 | 27 | [249] Mananchaya Sawangkaew v Ayano Shimizu [368] | 6-0,4-6,3-6 |
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.