Stadium: Centre Court Round: 27
| ITF Women Sao Paulo | 2018/03/01 15:15 | Duque Marino, Mariana v Kurata, Nathaly | 6-7,6-2,6-2 |
| ITF Women Sao Paulo | 2018/02/28 14:20 | Duque Marino, Mariana v Giangreco Campiz, Camila | 6-4,4-6,6-1 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/24 14:00 | Duque Marino, Mariana v Fiona Ferro | 3-6,3-6 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/23 14:30 | Duque Marino, Mariana v Audrey Albie | 7-6,3-6,6-3 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/22 20:30 | Duque Marino, Mariana v Gonzalez, Montserrat | 6-2,6-3 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/20 20:15 | Duque Marino, Mariana v Wolf Gasparin, Nathalia | 6-0,6-0 |
| ITF Women Midland | 2018/01/30 17:15 | Jessica Pegula v Duque Marino, Mariana | 6-2,6-1 |
| Newport Beach, USA | 2018/01/22 19:15 | Duque Marino, Mariana v Kayla Day | 3-6,6-7 |
| ITF Women Sao Paulo | 2018/03/01 21:30 | Burger, Cindy v Fiona Ferro | 6-4,1-6,6-4 |
| ITF Women Sao Paulo | 2018/02/27 14:25 | Emiliana Arango v Burger, Cindy | 3-6,6-1,6-7 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/22 17:30 | Burger, Cindy v Katie Swan | 6-3,3-6,0-6 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/21 16:30 | Burger, Cindy v Moore, Tara | 6-1,6-2 |
| ITF Women Hammamet | 2018/02/07 09:00 | Burger, Cindy v Maetschke, Lisa-Marie | 6-3,4-6,4-6 |
| ITF Women Hammamet | 2018/02/02 09:00 | Simic, Jelena v Burger, Cindy | 6-7,7-6,6-2 |
| ITF Women Hammamet | 2018/02/01 08:30 | Natalia Siedliska v Burger, Cindy | 0-6,1-6 |
| ITF Women Hammamet | 2018/01/30 09:00 | Forys, Weronika Jasmina v Burger, Cindy | 3-6,3-6 |