Sofia Kenin defeated Ekaterina Alexandrova 6-0, 2-6, 7-6 in the quarter-finals of the WTA 250 Tokyo tournament on hard court. Despite Alexandrova entering as the pre-match favourite with odds of 1.21 to Kenin's 4.39, the American produced a comeback performance after losing the second set. Kenin's victory came via a tight third-set tiebreak, suggesting Alexandrova mounted a considerable recovery from a bagel first set. The result represents a notable upset, with Kenin advancing to the semi-finals despite being the underdog heading into the encounter.