| 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 | |
| ITF W40横滨 | 11/30 02:25 | 26 | Mananchaya Sawangkaew v Mei Yamaguchi | 6-4,6-4 | |
| ITF W40横滨 | 11/29 06:55 | 25 | [215] 安娜斯塔西娅•蒂科诺娃 v Mananchaya Sawangkaew [249] | 6-7,6-1,3-6 | |
| ITF W100高崎 | 11/22 01:30 | 25 | [120] 哈里特•达特 v Mananchaya Sawangkaew [248] | 6-2,6-1 | |
| ITF W100高崎 | 11/21 03:10 | 54 | [248] Mananchaya Sawangkaew v Aoi Ito [427] | 4-6,4-6 | |
| ITF W100高崎 | 11/20 01:00 | 54 | Mananchaya Sawangkaew v Himari Sato | 6-1,6-3 | |
| ITF W100高崎 | 11/17 06:00 | 27 | [263] Mananchaya Sawangkaew v 梁恩硕 [294] | 5-7,6-3,2-6 | |
| ITF W100高崎 | 11/16 05:20 | 26 | [89] 琳达•弗鲁维尔托娃 v Mananchaya Sawangkaew [263] | 3-6,6-7 | |
| ITF W100高崎 | 11/15 01:00 | 25 | [263] Mananchaya Sawangkaew v Ya Yi Yang [216] | 7-6,7-5 | |
| ITF W100高崎 | 11/13 07:45 | 54 | [263] Mananchaya Sawangkaew v Miho Kuramochi [452] | 6-2,6-4 | |
| ITF W100高崎 | 11/13 02:55 | 54 | [263] Mananchaya Sawangkaew v Eri Shimizu [442] | 6-7,6-3,6-4 | |
| ITF W25千岛湖 | 10/28 02:00 | 28 | Mananchaya Sawangkaew v 阿纳斯塔西亚•古列娃 | 6-1,4-6,5-7 | |
| ITF W25千岛湖 | 10/27 02:00 | 27 | Mananchaya Sawangkaew v Meiqi Guo | 6-1,6-4 | |
| ITF W25千岛湖 | 10/26 01:55 | 26 | [270] Mananchaya Sawangkaew v 丰硕 [224] | 6-3,6-2 | |
| ITF W25千岛湖 | 10/25 06:00 | 25 | Mananchaya Sawangkaew v 索菲亚∙莎帕特娃 | 6-1,6-2 | |
| ITF W100深圳 | 10/17 05:35 | 25 | [264] Mananchaya Sawangkaew v 王康怡 [347] | 6-2,1-6,3-6 | |
| ITF W25那空是贪玛叻 | 09/09 02:00 | 28 | [231] 阿纳斯塔西娅•扎哈罗娃 v Mananchaya Sawangkaew [267] | 6-7,6-4,6-1 | |
| ITF W25那空是贪玛叻 | 09/08 03:50 | 27 | [267] Mananchaya Sawangkaew v 阿莱娜•法雷 [415] | 6-0,6-2 | |
| ITF W25那空是贪玛叻 | 09/07 04:30 | 26 | [267] Mananchaya Sawangkaew v 彭宁•科瓦皮图克特 [331] | 6-3,6-3 | |
| ITF W25那空是贪玛叻 | 09/05 02:00 | 25 | Mananchaya Sawangkaew v Vaidehi Chaudhari | 6-4,6-4 | |
| ITF W25那空是贪玛叻 | 09/01 04:10 | 27 | [402] 达莉亚 v Mananchaya Sawangkaew [267] | 7-5,6-4 | |
| ITF W25那空是贪玛叻 | 08/31 06:15 | 26 | [475] Anchisa Chanta v Mananchaya Sawangkaew [267] | 1-6,2-6 | |
| ITF W25那空是贪玛叻 | 08/30 02:00 | 25 | [326] 李宗钰 v Mananchaya Sawangkaew [267] | 6-7,6-3,3-6 | |
| ITF W40香港 | 08/27 02:00 | 29 | [303] Mananchaya Sawangkaew v Ya Yi Yang [288] | 3-6,6-4,3-6 | |
| ITF W40香港 | 08/26 01:50 | 28 | [303] Mananchaya Sawangkaew v 京花冈村 [286] | 6-0,6-7,6-3 | |
| ITF W40香港 | 08/25 02:00 | 27 | [233] 张玮桓 v Mananchaya Sawangkaew [303] | 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.