Kalinskaya will face Leylah Fernandez, the Canadian, in the final. Fernandez was Raducanu’s opponent at the US Open final, with the Briton defeating her 6-4 6-3 on Arthur Ashe Stadium to clinch the title. Raducanu’s next focus is on Montreal, where she faces Elena-Gabriela Ruse in the first round of the WTA 1000 event.

Emma Raducanu’s impressive run in Washington has ended after a straights-set defeat by the Anna Kalinskaya, with the Russian’s heavy ground-strokes and metronomic accuracy proving too much for the Briton.

Raducanu has already secured British No 1 status with her progress in Washington DC and now faces a final four test against Kalinskaya with Leylah Fernandez facing Elena Rybakina in the other Citi Ope