Czech Republic leads Australia 2-0 in Fed Cup
Kvitova defeated Jarmila Gajdosova 7-6 (2), 6-3 before Safarova edged Sam Stosur 7-6 (6), 7-6 (4).
The Czechs are one win away from the semifinals against Italy or the United States.
Stosur had a 4-1 lead and failed to serve it out at 5-3, despite three set points. She had 10 double faults in the set, which took 1 hour, 23 minutes.
The Australian failed to serve out the second set at 6-5, and Safarova converted her second match point.
In Sunday's reverse singles, Kvitova plays Stosur and Safarova takes on Gajdosova.
Copyright 2013 by The Associated Press
This story is from ESPN.com's automated news wire. Wire index
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