Ekaterina Yashina upset Diana Marcinkevica to advance from the Round of 32 at the W35 Verbier tournament on August 19, 2026. The 33-year-old Russian, ranked 516 and born August 6, 1993, won on the clay Sandplatz surface to reverse their only prior meeting. Marcinkevica, 34 and ranked 854, had beate…