Helga Sverrisdotir scored 20 points as Iceland beat Ireland 68-56.
Sverrisdotir, despite being only 17 years of age, also had 13 rebounds and seven assists.
The victory was Iceland's first in their qualifying campaign.
Ireland shot a woeful 28 percent from the floor in dropping their third game.
Lindsay Peat and Suzanne Maguire each had 14 for the Irish.