Stadium: Court 27 Round: 62
| ITF Women Warsaw Qual | 2018/08/04 07:00 | Sumova, Diana v Malatinska, Justyna | 6-1,3-6,6-1 |
| ITF Women Baja | 2018/07/23 15:20 | Panna Udvardy v Sumova, Diana | 6-4,6-3 |
| ITF Women Olomouc Qual | 2018/07/14 12:15 | Nikola Tomanova v Sumova, Diana | 6-3,6-4 |
| ITF Women Jablonec Nad Nisou | 2018/06/26 11:55 | Kharitonova, Anastasia v Sumova, Diana | 6-4,6-1 |
| ITF Women Kaltenkirchen | 2018/06/20 12:55 | Sumova, Diana v Wacker, Jennifer | 3-6,6-3,4-6 |
| ITF Women Prerov | 2018/06/15 09:00 | Sumova, Diana v Pantuckova, Magdalena | 3-6,2-6 |
| ITF Women Prerov | 2018/06/13 10:30 | Lavickova, Kristyna v Sumova, Diana | 4-6,3-6 |
| ITF Women Prerov | 2018/06/12 10:30 | Dudlakova, Dagmar v Sumova, Diana | 4-6,0-6 |
| ITF Women Warsaw Qual | 2018/08/04 13:00 | Melgers, Annick v Szmit, Karolina | 2-6,5-7 |
| ITF Women Jablonec Nad Nisou Qual | 2018/06/23 11:30 | Szmit, Karolina v Zajda, Magdalena | 1-6,6-2,2-6 |
| ITF Women Prerov Qual | 2018/06/10 08:00 | Ani Vangelova v Szmit, Karolina | 6-2,7-6 |
| ITF Women Prerov Qual | 2018/06/09 08:00 | Szmit, Karolina v Augustinova, Natalie | 6-3,4-6,6-1 |
| ITF Women Trnava | 2018/02/03 11:00 | Szmit, Karolina v Pogribnyak, Nataliya | 6-4,2-6,6-7 |
| ITF Women Mragowo | 2017/08/12 08:00 | Szmit, Karolina v Neuwirth, Anna-Lena | 3-6,0-6 |
| ITF Women Torun Qual | 2017/06/25 10:00 | Sokolovskaya, Yulia v Szmit, Karolina | 6-4,6-1 |
| ITF Women Warsaw Qual | 2017/06/18 11:00 | Szmit, Karolina v Forys, Weronika Jasmina | 3-6,4-6 |