Stadium: Court 1 CTA Round: 27 Ground: Hardcourt outdoor
| ITF - Amarante W15 | 2021/07/22 09:00 | Lucie Nguyen Tan v Maria Martinez Vaquero | 6-0,6-3 |
| ITF - Amarante W15 | 2021/07/21 11:00 | Ines Murta v Lucie Nguyen Tan | 0-6,6-7 |
| ITF - Almada W15 | 2021/07/16 08:30 | Lucie Nguyen Tan v Yeon Woo Ku | 3-6,2-6 |
| ITF - Almada W15 | 2021/07/15 08:30 | Elizabet Hamaliy v Lucie Nguyen Tan | 4-6,2-6 |
| ITF - Almada W15 | 2021/07/13 08:30 | Sashi Kempster v Lucie Nguyen Tan | 1-6,1-6 |
| ITF - Montpellier W60 | 2021/06/27 16:25 | Yuriko Lily Miyazaki v Lucie Nguyen Tan | 6-3,6-2 |
| ITF - Denain W25 | 2021/06/14 13:05 | Melanie Klaffner v Lucie Nguyen Tan | 5-7,6-2,10-3 |
| ITF - Sibenik W15 | 2021/05/26 09:45 | Petra Marcinko v Lucie Nguyen Tan | 6-2,6-4 |
| ITF - Amarante W15 | 2021/07/22 09:00 | Mafalda Guedes v Mei Yamaguchi | 4-6,0-6 |
| ITF - Amarante W15 | 2021/07/20 11:00 | Fiona Codino v Mei Yamaguchi | 4-6,2-6 |
| ITF - Almada W15 | 2021/07/16 08:30 | Alexa Graham v Mei Yamaguchi | 7-6,7-6 |
| ITF - Almada W15 | 2021/07/15 10:10 | Leonor Oliveira v Mei Yamaguchi | 7-5,2-6,0-6 |
| ITF - Almada W15 | 2021/07/13 08:30 | Oceane Babel v Mei Yamaguchi | 3-6,2-6 |
| ITF - Lisbon W25 | 2021/07/06 14:45 | Mei Yamaguchi v Lulu Sun | 7-6,3-6,1-6 |
| ITF - Lisbon W25 | 2021/07/05 08:30 | Mei Yamaguchi v Julita Saner | 6-1,6-0 |
| ITF - Lisbon W25 | 2021/07/04 11:00 | Mei Yamaguchi v Milla Sequeira | 6-0,6-2 |