Stadium: Court 9 Round: 27 Ground: Hardcourt outdoor
| ITF W25 Pretoria | 2021/09/29 09:00 | Nicole Khirin v Chihiro Muramatsu | 1-6,7-5,6-4 |
| ITF W25 Navi Mumbai | 2021/12/30 07:00 | Ekaterina Reyngold v Chihiro Muramatsu | 6-4,6-1 |
| ITF W25 Navi Mumbai | 2021/12/29 07:45 | Sai Samhitha Chamarthi v Chihiro Muramatsu | 0-6,2-6 |
| ITF W25 Pune | 2021/12/23 04:30 | Moyuka Uchijima v Chihiro Muramatsu | 6-2,6-0 |
| ITF W25 Pune | 2021/12/22 05:40 | Farhat Aleen Qamar v Chihiro Muramatsu | 2-6,0-6 |
| ITF W25 Pune | 2021/12/21 04:00 | Hiroko Kuwata v Chihiro Muramatsu | 5-7,3-6 |
| ITF W25 Haabneeme | 2021/11/03 11:30 | Ayla Aksu v Chihiro Muramatsu | 6-2,6-2 |
| WTA Courmayeur | 2021/10/23 15:30 | Giulia Gatto Monticone v Chihiro Muramatsu | 6-0,6-2 |
| ITF W25 Netanya | 2021/10/21 09:00 | Fanny Ostlund v Chihiro Muramatsu | 7-6,6-3 |
| ITF W15 Heraklion | 2021/12/05 08:00 | Nicole Khirin v Radka Zelnickova | 6-2,6-1 |
| ITF W15 Heraklion | 2021/12/04 08:00 | Ilinca D Amariei v Nicole Khirin | 2-6,6-4,1-6 |
| ITF W15 Heraklion | 2021/12/03 08:00 | Michaela Laki v Nicole Khirin | 3-6,2-6 |
| ITF W15 Heraklion | 2021/12/02 07:00 | Judit Hernandez Miranda v Nicole Khirin | 4-6,3-6 |
| ITF W15 Heraklion | 2021/12/01 09:10 | Julia Kimmelmann v Nicole Khirin | 0-6,1-6 |
| ITF W15 Heraklion | 2021/11/28 08:00 | Michaela Laki v Nicole Khirin | 5-7,6-1,7-5 |
| ITF W15 Heraklion | 2021/11/27 08:00 | Nicole Khirin v Nicole Fossa Huergo | 6-1,6-4 |
| ITF W15 Heraklion | 2021/11/26 09:00 | Simona Ogescu v Nicole Khirin | 4-6,2-6 |