Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF Women Irapuato Qual | 2018/03/11 17:30 | Hanna Chang v Charlotte Chavatipon | 6-3,6-0 |
| ITF Women Rancho Santa Fe Qual | 2018/02/19 17:30 | Paula Cristina Goncalves v Hanna Chang | 6-3,4-6,6-4 |
| ITF Women Rancho Santa Fe Qual | 2018/02/18 17:30 | Hanna Chang v Rebecca Sramkova | 7-6,7-5 |
| WTA Newport Beach Qual | 2018/01/20 18:00 | Amanda Anisimova v Hanna Chang | 6-4,6-4 |
| ITF Women Orlando Qual | 2018/01/14 15:00 | Hanna Chang v Elizabeth Halbauer | 4-6,3-6 |
| ITF Women Daytona Beach | 2018/01/11 01:10 | Hanna Chang v Victoria Duval | 2-6,6-4,15-17 |
| ITF Women Daytona Beach Qual | 2018/01/09 16:10 | Chihiro Muramatsu v Hanna Chang | 4-6,2-6 |
| ITF Women Daytona Beach Qual | 2018/01/08 19:30 | Ksenia Kuznetsova v Hanna Chang | 1-6,2-6 |
| ITF Women Irapuato Qual | 2018/03/11 17:30 | Emiliana Arango v Julia Fisch | 6-1,6-3 |
| ITF Women Sao Paulo | 2018/02/27 14:25 | Emiliana Arango v Cindy Burger | 3-6,6-1,6-7 |
| ITF Women Sao Paulo Qual | 2018/02/26 13:30 | Emiliana Arango v Madison Bourguignon | 6-4,6-1 |
| ITF Women Sao Paulo Qual | 2018/02/25 13:00 | Emiliana Arango v Andrea Duva | 6-0,6-1 |
| ITF Women Sao Paulo Qual | 2018/02/24 12:00 | Emiliana Arango v Raquel Martini | 6-0,6-0 |
| ITF Women Curitiba | 2018/02/21 22:10 | Julia Grabher v Emiliana Arango | 7-5,6-1 |
| 2018 Fed Cup | 2018/02/09 17:00 | Alexa Guarachi v Emiliana Arango | 2-6,6-7 |
| 2018 Fed Cup | 2018/02/07 17:00 | Montserrat Gonzalez v Emiliana Arango | 6-4,6-3 |