Stadium: Cancha 1 Round: 25 Ground: Clay
| ITF W15 Guayaquil | 2019/04/20 17:30 | Yuliana Lizarazo v Mell E R Gonzalez | 6-3,6-1 |
| ITF W15 Guayaquil | 2019/04/19 18:15 | Ivania Martinich v Mell E R Gonzalez | 7-5,4-6,1-6 |
| ITF W15 Guayaquil | 2019/04/18 18:05 | Mell E R Gonzalez v Leslie Espinoza | 6-2,6-1 |
| ITF W15 Guayaquil | 2019/04/17 16:00 | Monica A Solarte v Mell E R Gonzalez | 2-6,0-6 |
| 2019 Fed Cup | 2019/02/09 15:00 | Mell E R Gonzalez v Catalina Pella | 5-7,2-6 |
| 2019 Fed Cup | 2019/02/08 15:00 | Maria Camila Osorio v Mell E R Gonzalez | 6-3,5-7,6-3 |
| 2019 Fed Cup | 2019/02/07 15:00 | Giuliana Olmos v Mell E R Gonzalez | 5-7,6-2,7-6 |
| 2019 Fed Cup | 2019/02/06 15:00 | Montserrat Gonzalez v Mell E R Gonzalez | 7-5,6-3 |
| ITF W25 Porto | 2019/07/27 12:00 | Mari Osaka v Myrtille Georges | 6-7,5-7 |
| ITF W25 Porto | 2019/07/26 12:05 | Pemra Ozgen v Mari Osaka | 4-6,1-6 |
| ITF W25 Porto | 2019/07/25 19:55 | Shrivalli Rashmikaa Bhamidipaty v Mari Osaka | 3-6,2-6 |
| ITF W25 Porto | 2019/07/24 14:05 | Sarah Beth Grey v Mari Osaka | 5-7,5-7 |
| ITF W25 Palmela | 2019/07/16 10:15 | Mari Osaka v Eden Silva | 6-4,1-6,4-6 |
| ITF W25 Corroios-Seixal | 2019/07/04 12:45 | Mari Osaka v Paige Mary Hourigan | 6-7,4-6 |
| ITF W25 Corroios-Seixal | 2019/07/03 16:55 | Mari Osaka v Laura Schaeder | 6-0,6-4 |
| ITF W25 Madrid | 2019/06/22 09:00 | Mari Osaka v Eva Guerrero Alvarez | 6-3,5-7,4-6 |