Bacsinszky began the year in Shenzhen, upsetting No. 4 Petra Kvitová in the semifinal before losing to No. 3 Simona Halep in her first WTA final in five years. She then reached the third round of the Australian Open followed by back-to-back titles in Mexico at Acapulco and Monterrey, beating Caroline Garcia in both finals. As a result, her ranking rose into the top 30 for the first time. She continued this good form at the Indian Wells Premier Mandatory, defeating No. 8 Ekaterina Makarova en route to the quarterfinals where she lost to No. 1 Serena Williams, thereby ending her win streak at a career-best 15 matches.