Stadium: Court 4 Round: 25 Ground: Clay
| Altenkirchen, Qualifications Simples W-WITF-GER-02A | 2018/02/19 13:15 | Jesika Maleckova v Gerlach, Katharina | 6-3,6-0 |
| Altenkirchen, Qualifications Simples W-WITF-GER-02A | 2018/02/18 09:00 | Gerlach, Katharina v Kolodziejova, Miriam | 4-6,6-3,6-4 |
| Altenkirchen, Qualifications Simples W-WITF-GER-02A | 2018/02/17 09:30 | Gerlach, Katharina v Cristina Bucsa | 7-6,3-6,6-2 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/11 09:00 | Marina Bassols Ribera v Gerlach, Katharina | 6-2,6-1 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/10 18:00 | Marina Bassols Ribera v Gerlach, Katharina | 6-2,5-1 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/09 10:15 | Rosa Vicens Mas v Gerlach, Katharina | 6-3,3-6,1-6 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/08 08:30 | Lucia Cortez Llorca v Gerlach, Katharina | 1-6,6-7 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/07 09:50 | Tatiana Pieri v Gerlach, Katharina | 1-6,0-6 |
| Palmanova, Qualifications Simples W-WITF-ESP-03A | 2018/02/19 08:30 | Fusinato, Francesca v Rosca, Ioana Loredana | 7-5,6-3 |
| Palmanova, Qualifications Simples W-WITF-ESP-03A | 2018/02/18 09:00 | Biran, Shahar v Rosca, Ioana Loredana | 0-6,1-6 |
| Palmanova, Qualifications Simples W-WITF-ESP-03A | 2018/02/17 12:30 | Rosca, Ioana Loredana v Noelia Bouzo Zanotti | 6-3,6-2 |
| Grenoble, Singles W-WITF-FRA-04B | 2018/02/06 12:10 | Rosca, Ioana Loredana v Brouleau, Lou | 6-4,1-6,4-6 |
| ITF Women Grenoble Qual | 2018/02/05 13:25 | Lucrezia Stefanini v Rosca, Ioana Loredana | 4-6,2-6 |
| ITF Women Grenoble Qual | 2018/02/04 14:20 | Thommen, Aline v Rosca, Ioana Loredana | 2-6,0-6 |
| ITF Women Grenoble Qual | 2018/02/03 17:05 | Rosca, Ioana Loredana v Theo Gravouil | 2-6,6-4,6-2 |
| ITF Women Hammamet | 2018/01/17 11:10 | Lucrezia Stefanini v Rosca, Ioana Loredana | 7-5,6-4 |