Raducanu wins 10 games in a row in blistering start Azarenka had no answer to the British No 1's quality Raducanu to play Pegula for place in last eight
World number six Simona Halep did not play her second-round match against Veronika Kudermetova after sustaining a thigh injury.
The rivals collide in Jeddah on Saturday.
Alex Haydock-Wilson finished third behind his team-mate.