If Swiatek wins the WTA 1000 event, she’s safe at No. 2—but if she loses at any point, Pegula and Gauff could strike.

No. 3 seed Jessica Pegula picked up her tour-leading 27th main-draw win of the year by defeating Eva Lys 6-2, 6-2 in the second round of the Mutua Madrid Open on Friday. Pegula was the 2022 runner-up ...