Stadium: Court 1 Round: 25 Ground: Grass
| ITF Women Cagnes-Sur-Mer | 2018/05/08 10:10 | Witthoeft, Carina v Bibiane Schoofs | 3-6,4-6 |
| Open de France - Femmes | 2018/05/29 09:00 | Fiona Ferro v Witthoeft, Carina | 6-4,6-2 |
| Nuremberg, Germany | 2018/05/21 15:30 | Witthoeft, Carina v Mona Barthel | 5-7,3-6 |
| ITF Women Cagnes-Sur-Mer | 2018/05/08 10:10 | Witthoeft, Carina v Bibiane Schoofs | 3-6,4-6 |
| WTA Prague | 2018/04/30 11:25 | Vikhlyantseva, Natalia v Witthoeft, Carina | 6-4,6-4 |
| WTA - Stuttgart | 2018/04/25 12:10 | Witthoeft, Carina v Zarina Diyas | 3-6,2-6 |
| WTA Stuttgart Qual | 2018/04/23 13:20 | Witthoeft, Carina v Marketa Vondrousova | 7-5,1-6,3-6 |
| WTA Stuttgart Qual | 2018/04/22 13:50 | Witthoeft, Carina v Zaja, Anna | 2-6,6-0,6-3 |
| WTA Stuttgart Qual | 2018/04/21 15:50 | Witthoeft, Carina v Honcova, Michaela | 6-0,6-1 |
| French Open Women Qual | 2018/05/24 14:10 | Tamara Korpatsch v Bibiane Schoofs | 6-4,7-6 |
| French Open Women Qual | 2018/05/23 08:00 | Bibiane Schoofs v Ahn, Kristie | 7-6,2-6,6-3 |
| ITF Women Cagnes-Sur-Mer | 2018/05/11 14:30 | Bibiane Schoofs v Ons Jabeur | 2-6,2-6 |
| ITF Women Cagnes-Sur-Mer | 2018/05/09 10:30 | Bibiane Schoofs v Kovinic, Danka | 6-4,6-4 |
| ITF Women Cagnes-Sur-Mer | 2018/05/08 10:10 | Witthoeft, Carina v Bibiane Schoofs | 3-6,4-6 |
| ITF Women Cagnes-Sur-Mer Qual | 2018/05/07 10:40 | Yerolymos, Margot v Bibiane Schoofs | 7-6,3-6,1-6 |
| ITF Women Cagnes-Sur-Mer Qual | 2018/05/06 12:20 | Wallace, Isabelle v Bibiane Schoofs | 3-6,1-6 |
| ITF Women Cagnes-Sur-Mer Qual | 2018/05/05 14:10 | Ekaterina Yashina v Bibiane Schoofs | 6-3,1-6,0-6 |