Stadium: Court 5 Round: 44
| ITF Women Kaltenkirchen | 2018/06/17 08:30 | Natalia Pietras v Wacker, Jennifer | 2-6,3-6 |
| ITF Women Essen Qual | 2018/06/10 10:30 | Wacker, Jennifer v Greet Minnen | 1-6,2-6 |
| ITF Women Essen Qual | 2018/06/10 07:00 | Veselova, Anastasia v Wacker, Jennifer | 6-4,2-6,5-7 |
| ITF Women Heraklion | 2018/03/18 09:30 | Heinrichs, Laura v Wacker, Jennifer | 6-2,6-3 |
| ITF Women Heraklion | 2018/03/17 07:30 | Marnellou, Maria v Wacker, Jennifer | 2-6,1-6 |
| ITF Women Heraklion | 2018/03/11 07:30 | Rosa Vicens Mas v Wacker, Jennifer | 6-2,6-2 |
| ITF Women Heraklion | 2018/03/10 07:30 | Tomazani, Magda v Wacker, Jennifer | 4-6,6-7 |
| ITF Women Heraklion | 2017/11/19 09:00 | Dmitrieva, Sofia v Wacker, Jennifer | 7-5,6-4 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/04/21 07:30 | Marie Mettraux v Prehn, Paula | 6-2,6-3 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/04/14 09:30 | Prehn, Paula v Sheikina, Valeriia | 2-6,0-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/03/04 08:30 | Nishizato, Kiko v Prehn, Paula | 6-1,6-0 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/24 07:00 | Ukolova, Anna v Prehn, Paula | 6-1,6-0 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/27 06:30 | Prehn, Paula v Solnyshkina, Maria | 2-6,0-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2017/09/24 07:30 | Surkova, Nasty v Prehn, Paula | 7-5,6-4 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2017/09/20 11:30 | Prehn, Paula v Suzan Lamens | 0-6,2-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2017/09/18 11:30 | Pedro, Candace Olivia v Prehn, Paula | 4-6,4-6 |