Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF W60 Berkeley | 2021/09/30 17:55 | Mayo Hibi v Victoria Duval | 6-0,7-6 |
| ITF W60 Berkeley | 2021/09/29 20:45 | Mayo Hibi v Jada Myii Hart | 6-3,6-2 |
| US Open Women | 2021/08/25 19:35 | Elvina Kalieva v Mayo Hibi | 6-3,6-4 |
| ITF W100 Landisville | 2021/08/12 21:45 | Mayo Hibi v Caty McNally | 4-6,6-7 |
| ITF W100 Landisville | 2021/08/11 15:45 | Caroline Dolehide v Mayo Hibi | 4-6,4-6 |
| ITF W100 Landisville | 2021/08/10 15:35 | Mariam Bolkvadze v Mayo Hibi | 3-6,7-6,6-10 |
| ITF W100 Landisville | 2021/08/09 16:50 | Sophia Whittle v Mayo Hibi | 6-1,6-7,6-10 |
| WTA San Jose | 2021/07/31 20:45 | Ellen Perez v Mayo Hibi | 6-2,6-7,7-5 |
| ITF W60 Berkeley | 2021/09/28 20:30 | Louisa Chirico v Panna Udvardy | 6-4,4-6,6-4 |
| WTA Columbus | 2021/09/23 19:30 | Madison Brengle v Louisa Chirico | 6-4,6-4 |
| WTA Columbus | 2021/09/22 00:30 | Maddison Inglis v Louisa Chirico | 3-6,6-1,2-6 |
| WTA Columbus | 2021/09/19 15:55 | Louisa Chirico v Ulrikke Eikeri | 6-2,5-7,6-3 |
| WTA Columbus | 2021/09/18 16:15 | Alycia Parks v Louisa Chirico | 7-6,1-6,6-7 |
| US Open Women | 2021/08/24 22:00 | Dalma Galfi v Louisa Chirico | 3-6,6-1,6-2 |
| ITF W100 Landisville | 2021/08/09 15:50 | Louisa Chirico v Ankita Raina | 6-2,1-6,7-10 |
| WTA Charleston | 2021/07/27 20:35 | Louisa Chirico v Maria Mateas | 4-6,3-6 |