Czech pair Jiri Vesely and Adam Pavlasek overcame Australians Lleyton Hewitt and Samuel Groth 1-6, 7-6 (7-2), 3-6, 7-6 (7-4), 6-2 in a double's match of the Davis Cup World Group first round.
Australia still lead 2-1 despite Saturday's loss, Xinhua reported on Saturday.
Czech team captain Jaroslav Navratil said he did not expect that the team could stay in the match after two defeats in the singles on Friday. The victory revived the possibility of the Czech team reaching the next round of the tennis event.