The 22-year-old Canadian took down Australia's Maya Joint in the Round of 32, U.S.'s Jessica Pegula in the Round of 16, U.S.'s Taylor Townsend in the quarterfinals, and Great Britain's Emma Raducanu in the semifinals on her way to the title match—where she beat Russia's Anna Kalinskaya in straight sets (6–1, 6–2).

Leylah Fernandez defeated Anna Kalinskaya 6-1, 6-2 in Sunday's DC Open final for her first title at a WTA 500 event.

Canada's Leylah Fernandez defeated Russian Anna Kalinskaya 6-1, 6-2 for her fourth career WTA title at the Citi Open hardcourt tennis tournament on Sunday.