Mariana Duque Marino 3-6,6-7 Kayla Day 2018-01-22 19:15
Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
Home History
| Australian Open Women | 2018/01/15 00:00 | Ying-Ying Duan v Mariana Duque Marino | 6-0,6-1 |
| WTA Hobart Qual | 2018/01/05 23:00 | Nina Stojanovic v Mariana Duque Marino | 6-4,6-1 |
| WTA Seoul | 2017/09/18 03:00 | Luksika Kumkhum v Mariana Duque Marino | 3-6,6-4,6-1 |
| US Open Women Qual | 2017/08/25 17:15 | Mariana Duque Marino v Mihaela Buzarnescu | 7-6,2-6,4-6 |
| US Open Women Qual | 2017/08/24 18:00 | Mariana Duque Marino v Alexa Glatch | 6-4,6-3 |
| US Open Women Qual | 2017/08/22 22:50 | Mariana Duque Marino v Kathinka Von Deichmann | 7-6,4-6,6-4 |
| WTA Cincinnati Qual | 2017/08/13 17:30 | Mariana Duque Marino v Monica Puig | 4-6,7-6,5-7 |
| WTA Cincinnati Qual | 2017/08/12 17:30 | Monica Niculescu v Mariana Duque Marino | 6-4,2-6,1-6 |
Away History
| Australian Open Women Qual | 2018/01/14 02:00 | Magdalena Frech v Kayla Day | 6-3,6-0 |
| Australian Open Women Qual | 2018/01/13 06:30 | Kayla Day v Xinyun Han | 7-6,6-0 |
| WTA Brisbane Qual | 2017/12/29 01:40 | Kayla Day v Sara Tomic | 1-6,1-6 |
| ITF Women Waco | 2017/11/10 18:30 | Kayla Day v Ajla Tomljanovic | 4-6,2-6 |
| ITF Women Waco | 2017/11/09 18:10 | Stefanie Voegele v Kayla Day | 6-2,3-6,2-6 |
| ITF Women Waco | 2017/11/07 19:10 | Kayla Day v Victoria Rodriguez | 6-0,5-7,6-4 |
| ITF Women Tyler | 2017/11/01 17:00 | Kayla Day v Victoria Duval | 3-6,4-6 |
| ITF Women Macon | 2017/10/28 14:00 | Victoria Duval v Kayla Day | 6-1,6-3 |