Elina Avanesyan defeated favoured Ashlyn Krueger 7–6, 6–3 in the first round of the WTA 250 event in Osaka on hard court. Despite entering as the pre-match favourite with odds of 1.68 to Avanesyan's 2.29, Krueger could not convert her advantage, with Avanesyan securing a competitive opening set via tiebreak before dominating the second. The result represents an upset victory for Avanesyan and suggests momentum heading into the tournament's later stages.