Gauff proves too strong for Boulter at China Open

Gauff will now face either Naomi Osaka or Katie Volynets, whose match was put back to Monday because of heavy rain, in the last 16.

Boulter beat Taylor Townsend, of the United States, to set up a meeting with Gauff and there was little to separate the pair in the early stages, but after breaking Boulter's serve in the sixth game Gauff began to pull ahead.

However, the British No.1 and girlfriend of Australian No.1 Alex de Minaur, battled back and some solid serving helped her recover from 5-2 down to level at 5-5 before Gauff eventually took the first set on her third set point of the 12th game.

Gauff enjoyed a bright start to the second set and broke Boulter in the fourth game to move ahead before going on to claim victory on her second match point.