Stadium: Court 5 Round: 54
| ITF Women Fergana Qual | 2018/06/17 08:30 | Кузнецова, Варвара v Трешчева, София | 2-6,4-6 |
| Minsk, Singles Qualifying W-WITF-BLR-01A | 2018/06/11 07:00 | Трешчева, София v Мария Ткачева | 1-6,4-6 |
| Minsk, Singles Qualifying W-WITF-BLR-01A | 2018/06/10 07:00 | Трешчева, София v Martemyanova, Anna | 6-2,6-7,7-6 |
| Minsk, Singles Qualifying W-WITF-BLR-01A | 2018/06/04 07:00 | Sorokolet, Kristina v Трешчева, София | 6-0,6-1 |
| Minsk, Singles Qualifying W-WITF-BLR-01A | 2018/06/03 10:00 | Марина Колб v Трешчева, София | 6-7,3-6 |
| ITF Women Tbilisi Qual | 2018/04/30 07:00 | Анастасия Куликова v Трешчева, София | 7-6,6-3 |
| ITF Women Kazan | 2018/03/14 07:00 | Трешчева, София v Фролова, Анастасия | 3-6,2-6 |
| ITF Women Kazan | 2018/03/12 10:00 | Погребняк, Валерия v Трешчева, София | 2-6,2-6 |
| ITF Women Fergana Qual | 2018/06/17 08:45 | Mukhammadsidikova, Gulchekhra v Изабелла Божичевич | 2-6,2-6 |
| ITF Women Namangan Qual | 2018/06/02 10:15 | Дарья Астахова v Изабелла Божичевич | 7-5,6-1 |
| ITF Women Andijan Qual | 2018/05/27 08:20 | Ализе Чернека v Изабелла Божичевич | 7-6,6-4 |
| ITF Women Andijan Qual | 2018/05/26 08:20 | Madinabonu, Sobirova v Изабелла Божичевич | 1-6,0-6 |
| Changwon, Singles Qualifying W-WITF-KOR-01A | 2018/05/20 02:00 | Еунйонг Парк v Изабелла Божичевич | 6-0,2-6,6-1 |
| ITF Women Incheon Qual | 2018/05/13 02:00 | Варвара Флинк v Изабелла Божичевич | 6-0,6-0 |
| ITF Women Goyang Qual | 2018/05/06 06:15 | Изабелла Божичевич v Еунцзи Лим | 7-5,4-6,6-7 |
| ITF Women Canberra Qual | 2018/03/25 02:15 | Стоянович, Елена v Изабелла Божичевич | 7-6,6-3 |