| WTA Lugano WD | 04/12 15:45 | 26 | Lapko/Sabalenka v Barthel/Witthoeft | 6-3,6-2 | |
| WTA Doha WD | 02/13 17:35 | 25 | Barthel/Witthoeft v Krejcikova/Siniakova | 6-2,2-6,2-10 | |
| Australian Open Women WD | 01/20 00:00 | 25 | Barthel/Witthoeft v Aoyama/Yang | 1-6,5-7 | |
| Australian Open Women WD | 01/18 03:05 | 24 | Jiang/Tang v Barthel/Witthoeft | 6-7,5-7 | |
| WTA Wuhan WD | 09/27 12:30 | 26 | Barthel/Witthoeft v Makarova/Vesnina | Retired | |
| WTA Wuhan WD | 09/26 12:10 | 25 | Cirstea/Ostapenko v Barthel/Witthoeft | Walkover | |
| US Open WD | 09/01 15:00 | 25 | Barthel/Witthoeft v Hradecka/Siniakova | 2-6,4-6 | |
| US Open WD | 08/31 15:00 | 24 | Broady/Jurak v Barthel/Witthoeft | 6-7,2-6 | |
| French Open WD | 05/31 09:00 | 24 | Barthel/Witthoeft v Jurak/Rodionova | 2-6,6-2,4-6 |