On the first day of the main match-ups during the BNP Paribas Open, Shelby Rogers beat Anehlina Kalinina 7-6, 6-2 to advance further. Meanwhile, Magda Linette outlasted Rebecca Peterson in a three-set affair 3-6, 6-3, 6-2. Sloane Stephens overcame Heather Watson in a grueling 6-7, 7-5, 6-1 game.
On the other hand, Alize Kornet overcame Elena-Gabriela Ruse 6-3, 7-6 to advance ahead. Irina-Camelia Begu beat Fiona Ferro 6-2, 7-6. Yulia Putintseva, Misaki Doi, Liudmilla Samasonova, Marta Kostyuk, Petra Martic, Jasmine Paolini, Madison Keys, Tereza Martincova, Aliaksandra Sasnovich, Su-Wei Hsieh, and Arantxa Rus also advanced to the next round.