Stadium: Court 1
| 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 |
| US Pro Tennis Series West Coast Women | 2020/06/03 20:50 | Hanna Chang v Giuliana Olmos | 0-6,0-6 |
| US Pro Tennis Series West Coast Women | 2020/06/03 17:35 | Mary Closs v Hanna Chang | 1-6,3-6 |
| US Pro Tennis Series West Coast Women | 2020/06/01 19:10 | Giuliana Olmos v Hanna Chang | 6-3,7-5 |
| US Pro Tennis Series West Coast Women | 2020/06/01 17:15 | Hanna Chang v Pamela Montez | 1-6,2-6 |
| ITF W25 Irapuato | 2020/03/11 19:55 | Shilin Xu v Hanna Chang | 3-6,2-6 |
| ITF W25 Irapuato | 2020/03/09 23:30 | Hanna Chang v Giuliana Olmos | 6-2,7-5 |
| WTA Indian Wells | 2020/03/04 22:50 | Hanna Chang v Kurumi Nara | 1-6,3-6 |
| WTA Indian Wells | 2020/03/02 18:00 | Danielle Lao v Hanna Chang | 6-1,5-7,6-2 |
| US Pro Tennis Series West Coast Women | 2020/06/02 20:20 | Pamela Montez v Lorraine M. Guillermo | 6-1,6-3 |
| US Pro Tennis Series West Coast Women | 2020/06/02 17:55 | Lorraine M. Guillermo v Ena Shibahara | 7-5,4-6,5-10 |
| ITF W25 Las Vegas | 2020/03/02 18:00 | Charlotte Chavatipon v Lorraine M. Guillermo | 0-6,6-3,10-4 |
| ITF W25 Rancho Santa Fe | 2020/02/24 21:10 | Lorraine M. Guillermo v Olga Danilovic | 4-6,6-2,1-6 |
| ITF W25 Malibu | 2020/01/14 21:00 | Lorraine M. Guillermo v Solymar Colling | 2-6,3-6 |
| ITF W25 Malibu | 2020/01/13 18:30 | Lorraine M. Guillermo v Alyssa Tobita | 6-0,6-2 |
| ITF W15 Norman | 2019/12/04 20:55 | Jessica Failla v Lorraine M. Guillermo | 6-4,6-1 |
| ITF W25 Tucson | 2019/11/22 18:00 | Madeleine Kobelt v Lorraine M. Guillermo | 7-5,1-6,6-3 |