| UTR Pro Tennis Series California Women | 2020/07/20 18:30 | Lorraine M. Guillermo v Hanna Chang | 1-6,2-6 |
| UTR Pro Tennis Series California Women | 2020/07/13 19:45 | Lorraine M. Guillermo v Hanna Chang | 2-6,1-6 |
| US Pro Tennis Series West Coast Women | 2020/06/19 17:20 | Hanna Chang v Lorraine M. Guillermo | 6-4,7-5 |
| US Pro Tennis Series West Coast Women | 2020/06/05 18:05 | Hanna Chang v Lorraine M. Guillermo | 6-0,6-4 |
| ITF W25 Surprise | 2019/02/11 16:00 | Lorraine M. Guillermo v Hanna Chang | 6-3,2-6,4-10 |
| ITF Women Norman | 2018/11/13 20:25 | Hanna Chang v Lorraine M. Guillermo | 4-6,4-6 |
| ITF Women Macon Qual | 2017/10/23 21:20 | Hanna Chang v Lorraine M. Guillermo | 1-6,4-6 |
| UTR Pro Tennis Series California Women | 2020/07/27 18:30 | Hanna Chang v Marcela Zacarias | 1-6,4-6 |
| UTR Pro Tennis Series California Women | 2020/07/27 17:15 | Hanna Chang v Kayla Day | 3-6,1-6 |
| UTR Pro Tennis Series California Women | 2020/07/24 18:30 | Anna Morgina v Hanna Chang | 2-6,2-6 |
| UTR Pro Tennis Series California Women | 2020/07/24 16:00 | Hanna Chang v Kayla Day | 1-6,3-6 |
| UTR Pro Tennis Series California Women | 2020/07/22 18:30 | Hanna Chang v Anna Morgina | 6-3,6-3 |
| UTR Pro Tennis Series California Women | 2020/07/22 17:15 | Hanna Chang v Mary Closs | 6-2,6-1 |
| UTR Pro Tennis Series California Women | 2020/07/20 18:30 | Lorraine M. Guillermo v Hanna Chang | 1-6,2-6 |
| UTR Pro Tennis Series California Women | 2020/07/20 17:15 | Hanna Chang v Charlotte Chavatipon | 6-4,6-2 |
| UTR Pro Tennis Series California Women | 2020/07/28 18:30 | Lorraine M. Guillermo v Charlotte Chavatipon | 3-6,4-6 |
| UTR Pro Tennis Series California Women | 2020/07/28 16:00 | Lorraine M. Guillermo v Kimmi Hance | 7-5,3-6,10-6 |
| UTR Pro Tennis Series California Women | 2020/07/25 18:30 | Lorraine M. Guillermo v Mary Closs | 6-2,6-4 |
| UTR Pro Tennis Series California Women | 2020/07/25 16:00 | Lorraine M. Guillermo v Pamela Montez | 4-6,3-6 |
| UTR Pro Tennis Series California Women | 2020/07/23 18:30 | Marcela Zacarias v Lorraine M. Guillermo | 1-6,6-3,9-11 |
| UTR Pro Tennis Series California Women | 2020/07/23 17:15 | Lorraine M. Guillermo v Charlotte Chavatipon | 1-6,0-6 |
| UTR Pro Tennis Series California Women | 2020/07/20 18:30 | Lorraine M. Guillermo v Hanna Chang | 1-6,2-6 |
| UTR Pro Tennis Series California Women | 2020/07/20 16:00 | Elvina Kalieva v Lorraine M. Guillermo | 2-6,6-1,10-5 |