Who holds the world record for the fastest serve in tennis?

Jerzy Janowicz

Samuel Groth

Andy Roddick

Ivo Karlovic

The speed of 263 km/h (163.4 mph) in 2012 was measured at the ATP Challenger in Busan. The previous record holder was Croatian Ivo Karlović.

Jeremy Thompson wikipedia → Sam Groth

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Answers by country

France

18%

54%

18%

India

53%

25%

18%

the United States

49%

31%

Austria

44%

31%

17%

the United Kingdom

30%

34%

19%

15%

Australia

25%

32%

35%

the Netherlands

10%

30%

50%

10%

Poland

16%

29%

30%

22%

1702

Germany

18%

29%

24%

26%

131

Republic of Ireland

27%

54%

Switzerland

25%

16%

25%

33%

Which country banned motor racing from 1958 to 2007?

What is the meaning of the Italian word "Ferrari"?

What was the position of Greece in the parade of nations during the opening ceremony of the Olympic Games in Athens?

Greece marched first

Greece marched last

Greece was the number 46

Greece marched twice, both first and last

Which team has the most wins in Davis Cup?