| ITF - Goyang W50 | 05/22 03:20 | 25 | Mananchaya Sawangkaew v Eunhye Lee | 7-6,5-7,3-6 | |
| ITF - Kurume W75 | 05/18 01:00 | 28 | [214] Mananchaya Sawangkaew v Arina Rodionova [108] | 1-6,1-6 | |
| ITF - Kurume W75 | 05/17 03:10 | 27 | [430] Miho Kuramochi v Mananchaya Sawangkaew [214] | 7-6,5-7,4-6 | |
| ITF - Kurume W75 | 05/16 01:00 | 26 | Zarina Diyas v Mananchaya Sawangkaew | Walkover | |
| ITF - Kurume W75 | 05/14 01:00 | 25 | [321] Polina Iatcenko v Mananchaya Sawangkaew [214] | 7-5,1-6,4-6 | |
| ITF - Fukuoka W75 | 05/09 02:00 | 26 | [276] Aoi Ito v Mananchaya Sawangkaew [214] | 6-3,6-1 | |
| ITF - Fukuoka W75 | 05/07 01:00 | 25 | [390] Yuki Naito v Mananchaya Sawangkaew [214] | 3-6,4-6 | |
| ITF - Gifu W100 | 04/30 06:35 | 25 | [223] Mananchaya Sawangkaew v Haruka Kaji [270] | 1-6,6-3,3-6 | |
| ITF - Tokyo W100 | 04/25 01:50 | 26 | [223] Mananchaya Sawangkaew v Moyuka Uchijima [130] | 1-6,7-6,4-6 | |
| ITF - Tokyo W100 | 04/24 05:45 | 25 | [223] Mananchaya Sawangkaew v Aleksandra Krunic [110] | 6-4,2-6,6-3 | |
| ITF - Osaka W35 | 04/13 02:45 | 28 | [371] Sayaka Ishii v Mananchaya Sawangkaew [227] | 7-5,7-5 | |
| ITF - Osaka W35 | 04/12 01:00 | 27 | [291] Aoi Ito v Mananchaya Sawangkaew [227] | 3-6,4-6 | |
| ITF - Osaka W35 | 04/11 01:00 | 26 | [410] Miho Kuramochi v Mananchaya Sawangkaew [227] | 4-6,6-3,5-7 | |
| ITF - Osaka W35 | 04/10 05:05 | 25 | Hikaru Sato v Mananchaya Sawangkaew | 6-7,4-6 | |
| ITF - Kashiwa W50 | 04/02 05:05 | 25 | Mananchaya Sawangkaew v Chihiro Muramatsu | 6-3,5-7,4-6 | |
| ITF - Kofu W50 | 03/30 01:00 | 28 | [247] Mananchaya Sawangkaew v Ya-Hsuan Lee [413] | 4-6,4-6 | |
| ITF - Kofu W50 | 03/29 04:30 | 27 | Maegan Manasse v Mananchaya Sawangkaew | 6-3,4-6,4-6 | |
| ITF - Kofu W50 | 03/28 00:55 | 26 | [357] Naho Sato v Mananchaya Sawangkaew [247] | 7-6,4-6,3-6 | |
| ITF - Kofu W50 | 03/27 01:55 | 25 | [247] Mananchaya Sawangkaew v Sujeong Jang [215] | 7-5,6-4 | |
| ITF - Indore W35 | 03/16 04:30 | 28 | [239] Mananchaya Sawangkaew v Dalila Jakupovic [213] | 6-7,3-6 | |
| ITF - Indore W35 | 03/15 04:30 | 27 | [457] Jacqueline Cabaj Awad v Mananchaya Sawangkaew [239] | 2-6,1-6 | |
| ITF - Indore W35 | 03/14 04:00 | 26 | [326] Sahaja Yamalapalli v Mananchaya Sawangkaew [239] | 1-6,4-6 | |
| ITF - Indore W35 | 03/13 04:00 | 25 | [330] Rutuja Bhosale v Mananchaya Sawangkaew [239] | 2-6,0-6 | |
| ITF - Burnie W75 | 02/08 02:45 | 26 | [247] Mananchaya Sawangkaew v Maya Joint [446] | 3-6,1-6 | |
| ITF - Burnie W75 | 02/06 01:10 | 25 | [247] Mananchaya Sawangkaew v Kyoka Okamura [327] | 6-3,6-3 | |
| ITF - Burnie W75 | 02/01 23:45 | 27 | [260] Mananchaya Sawangkaew v Priscilla Hon [201] | 6-4,0-6,2-6 | |
| ITF - Burnie W75 | 02/01 01:45 | 26 | [260] Mananchaya Sawangkaew v Ivana Popovic [488] | 6-4,2-6,7-6 | |
| ITF - Burnie W75 | 01/29 23:00 | 25 | [260] Mananchaya Sawangkaew v Alana Parnaby [258] | 6-2,6-0 | |
| ITF - Nonthaburi W50 | 01/14 03:00 | 29 | [266] Mananchaya Sawangkaew v Antonia Ruzic [211] | 6-1,2-6,6-2 | |
| ITF - Nonthaburi W50 | 01/13 02:55 | 28 | [451] Sayaka Ishii v Mananchaya Sawangkaew [266] | 6-3,2-6,5-7 |
Mananchaya Sawangkaew (ur. 10 lipca 2002) – tajska tenisistka, reprezentantka kraju w rozgrywkach Pucharu Billie Jean King.