RESULTS COLLATED: Davis Cup World group

Feb 10, 2012, 22:42 GMT

Fribourg, Switzerland - Results Friday in Davis Cup World group first-round ties (x indicates new result).

at Fribourg, US lead Switzerland, 2-0

Singles

Mardy Fish, US, def Stanislas Wawrinka, Switzerland, 6-2, 4-6, 4-6, 6-1, 9-7

John Isner, US, def Roger Federer, Switzerland, 4-6, 6-3, 7-6 (7-4), 6-2

at Wiener Neustadt, Austria lead Russia, 2-0

Singles

Juergen Melzer, Austria, def Igor Kunitsyn, Russia, 6-2, 6-7 (3-7), 6-4, 3-6, 6-1

x Andreas Haider-Maurer, Austria, def Alex Bogomolov, Russia, 6-1, 6-4, 6-7 (1-7), 6-2

at Oviedo, Spain lead Kazakhstan, 2-0

Singles

Juan Carlos Ferrero, Spain, def Mikhail Kukushkin, Kazakhstan, 6-1, 4-6, 7-6 (7-2), 4-6, 6-4

x Nicolas Almagro, Spain, def Andrey Golubev, Kazakhstan, 6-3, 4-6, 6-1, 6-1

at Ostrava, Czech Republic, lead Italy, 2-0

Singles

Radek Stepanek, Czech Republic, def Andreas Seppi, Italy, 4-6, 6-4, 6-3, 3-6, 6-3

x Tomas Berdych, Czech Republic, def Simone Bolelli, Italy, 6-3, 4-6, 7-5, 6-2

at Nis, Serbia lead Sweden, 2-0

Singles

Janko Tipsarevic, Serbia, def Filip Prpic, Sweden, 6-3, 6-3, 6-4

Viktor Troicki, Serbia, def Michael Ryderstedt, Sweden, 6-4, 6-3, 5-7, 6-3

at Bamberg, Argentina lead Germany, 2-0

Singles

Juan Monaco, Argentina, def Philipp Petzschner, Germany, 6-3, 6-3, 6-3

David Nalbandian, Argentina, def Florian Mayer, Germany, 2-6, 6-0, 6-1, 7-6 (7-5)

at Hyogo, Japan level with Croatia, 1-1

Singles

Go Soeda, Japan, def Ivan Dodig, Croatia, 6-7 (3-7), 3-6, 6-4, 6-3, 7-5

Ivo Karlovic, Croatia, def Kei Nishikori, Japan, 6-4, 6-4, 6-3

at Vancouver, Canada, level with France. 1-1

x Jo-Wilfried Tsonga, France, def Vasek Pospisl, Canada, 6-1, 6-3, 6-4

x Milos Raonic, Canada, def Julien Benneteau, France, 6-2, 6-4, 7-5