At Miami Open Radwańska made a promising start, defeating world No. 1 Simona Halep in three sets. This victory marked Radwanska's second career win over a world No. 1, and the first since 2012. She extended her great record in Miami, too; reaching the round of 16 or better in ten of her 12 appearances. Radwańska ended her run in Miami with a loss to Victoria Azarenka in the fourth round. After Miami, she was promoted from 32nd to 30th in the WTA ranking.