Stadium: Court 3 Round: 25 Ground: Hardcourt indoor
| Koksijde, Singles W-WITF-BEL-04A | 2018/08/07 08:00 | Mihalikova, Tereza v Molinaro, Eleonora | 6-7,1-6 |
| ITF Women Figueira Da Foz | 2018/07/17 12:50 | AL Nabhani, Fatma v Mihalikova, Tereza | 6-4,6-7,7-5 |
| ITF Women Setubal | 2018/07/10 16:55 | Talbi, Shalimar v Mihalikova, Tereza | 6-3,6-3 |
| ITF Women Denain | 2018/07/03 12:00 | Mihalikova, Tereza v Anna Danilina | 0-6,5-7 |
| ITF Women Torun | 2018/06/27 12:15 | Mihalikova, Tereza v Kolodziejova, Miriam | 0-6,6-4,1-6 |
| ITF Women Singapore | 2018/06/11 02:00 | Mihalikova, Tereza v Ozaki, Risa | 3-6,6-7 |
| ITF Women Singapore | 2018/06/06 04:40 | Mihalikova, Tereza v Eguchi, Misa | 2-6,6-0,5-7 |
| ITF Women Singapore | 2018/06/04 02:00 | Namigata, Junri v Mihalikova, Tereza | 6-3,2-6,2-6 |
| Moscow, Singles W-WITF-RUS-05A | 2018/08/22 11:30 | Sizikova, Yana v Valeriya Yushchenko | 4-6,1-6 |
| Moscow, Singles W-WITF-RUS-05A | 2018/08/20 07:00 | Sizikova, Yana v Stamat, Vitalia | 6-0,6-2 |
| ITF Women LPD Gran Canaria | 2018/08/09 10:00 | Irene Burillo Escorihuela v Sizikova, Yana | 6-1,3-6,7-6 |
| ITF Women LPD Gran Canaria | 2018/08/08 11:30 | Sizikova, Yana v Andrea Gamiz | 2-6,6-4,7-5 |
| ITF Women LPD Gran Canaria | 2018/08/06 09:00 | Molina Megias, Carlota v Sizikova, Yana | 4-6,5-7 |
| WTA Moscow Qual | 2018/07/23 10:30 | Sizikova, Yana v Martina Trevisan | 6-3,2-6,2-6 |
| WTA Moscow Qual | 2018/07/23 07:00 | Fujiwara, Rika v Sizikova, Yana | 1-6,4-6 |
| WTA Gstaad Qual | 2018/07/14 09:10 | Conny Perrin v Sizikova, Yana | 6-4,6-4 |