| Open d'Australie - Femmes | 01/07 23:00 | 44 | [150] Conny Perrin v Witthoeft, Carina [171] | Retired | |
| ITF Women Dubai | 12/10 11:35 | 25 | [171] Witthoeft, Carina v Viktoriya Tomova [154] | 3-6,3-6 | |
| WTA Luxembourg | 10/15 13:50 | 25 | [62] Lapko, Vera v Witthoeft, Carina [100] | 6-4,5-7,6-4 | |
| WTA - Linz | 10/07 12:10 | 45 | [88] Witthoeft, Carina v Grammatikopoulou, Valentini [172] | 7-6,2-6,3-6 | |
| ITF Women Valencia | 09/25 16:55 | 25 | [90] Witthoeft, Carina v Jasmine Paolini [201] | 3-6,4-6 | |
| Biarritz, Simples W-WITF-FRA-17A | 09/13 15:00 | 26 | [92] Witthoeft, Carina v Rebecca Sramkova [279] | 6-7,6-7 | |
| Biarritz, Simples W-WITF-FRA-17A | 09/12 13:25 | 25 | [92] Witthoeft, Carina v Kostova, Elitsa [179] | 6-4,7-6 | |
| US Open Women | 08/29 23:05 | 24 | [26] Williams, Serena v Witthoeft, Carina [101] | 6-2,6-2 | |
| US Open Women | 08/27 23:40 | 23 | [119] Caroline Dolehide v Witthoeft, Carina [101] | 3-6,6-7 | |
| New Haven, USA | 08/18 19:15 | 45 | [71] Parmentier, Pauline v Witthoeft, Carina [100] | 7-5,6-2 | |
| WTA New Haven Qual | 08/17 20:15 | 44 | [100] Witthoeft, Carina v Petra Martic [51] | Retired | |
| ITF Women Hechingen | 08/08 16:00 | 25 | [101] Witthoeft, Carina v Katharina Hobgarski [311] | Retired | |
| WTA Gstaad | 07/17 08:30 | 25 | [92] Rodina, Evgeniya v Witthoeft, Carina [96] | 6-7,6-4,7-6 | |
| ITF Women Versmold | 07/13 15:35 | 27 | [81] Witthoeft, Carina v Laura Siegemund [322] | 1-6,3-6 | |
| ITF Women Versmold | 07/12 12:40 | 26 | [81] Witthoeft, Carina v Soler-Espinosa, Silvia [198] | 3-6,7-5,7-5 | |
| ITF Women Versmold | 07/11 17:15 | 25 | [81] Witthoeft, Carina v Ulrikke Eikeri [260] | 6-3,4-6,6-3 | |
| Wimbledon Women | 07/03 17:30 | 23 | [26] Suarez Navarro, Carla v Witthoeft, Carina [81] | 6-2,6-4 | |
| ITF Women Southsea | 06/26 11:45 | 26 | [71] Parmentier, Pauline v Witthoeft, Carina [81] | 6-4,1-6,7-6 | |
| WTA Mallorca | 06/20 12:55 | 26 | [79] Tatjana Maria v Witthoeft, Carina [81] | 7-6,6-3 | |
| WTA Mallorca | 06/18 14:00 | 25 | [81] Witthoeft, Carina v Francesca Schiavone [234] | 6-1,6-7,6-3 | |
| WTA Hertogenbosch | 06/11 10:20 | 25 | [75] Witthoeft, Carina v Bibiane Schoofs [174] | 4-6,5-7 | |
| French Open Women | 05/29 09:00 | 23 | [257] Fiona Ferro v Witthoeft, Carina [61] | 6-4,6-2 | |
| Nuremberg, Germany | 05/21 15:30 | 25 | [58] Witthoeft, Carina v Mona Barthel [122] | 5-7,3-6 | |
| ITF Women Cagnes-Sur-Mer | 05/08 10:10 | 25 | [59] Witthoeft, Carina v Bibiane Schoofs [198] | 3-6,4-6 | |
| WTA Prague | 04/30 11:25 | 25 | Vikhlyantseva, Natalia v Witthoeft, Carina | 6-4,6-4 | |
| WTA - Stuttgart | 04/25 12:10 | 25 | [56] Witthoeft, Carina v Diyas, Zarina [52] | 3-6,2-6 | |
| WTA Stuttgart Qual | 04/23 13:20 | 54 | [56] Witthoeft, Carina v Marketa Vondrousova [73] | 7-5,1-6,3-6 | |
| WTA Stuttgart Qual | 04/22 13:50 | 46 | [57] Witthoeft, Carina v Zaja, Anna [271] | 2-6,6-0,6-3 | |
| WTA Stuttgart Qual | 04/21 15:50 | 45 | [57] Witthoeft, Carina v Honcova, Michaela [229] | 6-0,6-1 | |
| Lugano, Switzerland | 04/11 11:30 | 25 | [74] Flipkens, Kirsten v Witthoeft, Carina [57] | 1-6,6-4,6-3 |