WIENER NEUSTADT, Austria -- Jurgen Melzer eased past Alex Bogomolov Jr. of Russia 6-2, 6-4, 6-1 Sunday to help Austria reach the quarterfinals of the Davis Cup for the first time since 1995.
Melzer's victory gave Austria an insurmountable 3-1 lead and set up a quarterfinal against defending champion Spain in April. Russia's Igor Kunitsyn defeated Andreas Haider-Maurer 6-4, 4-6, 7-6 (4) in the meaningless final singles match, leaving Austria with a 3-2 victory
Two-time champion Russia lost its opening series for a second straight year.
Croatia reaches quarters
Kei Nishikori defeated Ivan Dodig 7-5, 7-6 (4), 6-3 in the day's first reverse singles to pull the host nation even in the best-of-five. first-round series. But Soeda was overpowered by Karlovic, who had 17 aces.
Croatia advances to the quarterfinals in April while Japan goes to a promotion/relegation playoff in September. Japan was playing in the World Group for the first time in 26 years after beating India 4-1 in a regional playoff in September. Croatia is seventh in the Davis Cup rankings, 10 places ahead of Japan.
Tipsarevic helps Serbia advance
Tipsarevic won 6-2, 7-6 (5), 7-5 to give Serbia an unassailable 3-1 lead in the best-of-five series on an indoor hard court in the central Serbian town of Nis. In the last match, Serbia's Dusan Lajovic beat Filip Prpic 6-4, 6-4 for the final 4-1 score.
Serbia played without top-ranked Novak Djokovic, who is resting after winning the Australian Open.
Spain wraps up sweep of Kazakhstan
Spain will host Austria in the quarterfinals April 6-8. Kazakhstan must compete in a September playoff to keep its place in the World Group.
Italy avoids shutout vs. Czechs
The Czechs won the best-of-five series 4-1. Italy needs to win a playoff to stay in the World Group.
The Czechs already earned a spot in the quarters following their victories in the opening singles and the doubles and rested their top players -- Tomas Berdych and Radek Stepanek in the reverse singles.
Berdych and Stepanek defeated Daniele Braccialli and Potito Starace 6-3, 6-4, 6-2 in Saturday's doubles.
Marcel Stebe gives Germany consolation win
Argentina won the best-of-five series 4-1 and will play Croatia in the quarterfinals in April. Germany faces a playoff to stay in the World Group.
The visitors clinched their place in the quarters Saturday when Schwank and David Nalbandian rallied from two sets down to beat Tommy Haas and Philipp Petzschner 3-6, 4-6, 6-4, 6-3, 6-4 to decide the series.
Argentina was the runner-up last year to Spain and is seeking its first title after losing four finals. Germany has won three titles.
Information from The Associated Press was used in this report.