Just the one.
The branch of science that would deal with this question is called anthropology (the study of man). Most anthropologists now consider the concept of race to be an outdated one. This has happened partly because with modern travel genetic material is getting mixed up to the point that no one could keep track. It has also happened because common genetic material can now be identified among people that used to be considered "different races".
The concept of race is antiquated and discredited in anthropology. Genetically, humans do not differ, and "race" implies this. There are many hundreds of ethnicities throughout the world.
Race Around the World was created in 1997.
Comprehensive information for all countries in the world is not readily available.
The America's Cup is a short-course ocean race series. The race is not around the world. It his held at the home port of the winning captain of the previous race (which is why it is held in different parts of the world).
in Nascar it is 43 world of outlaws sprint cars is 24 and any other unknown race track has as many cars that enter the race in each class
The duration of Hot Wheels World Race is 1.83 hours.
GREEK GREEK GREEK Sweden actually. There live many doctors and so on ....
People populate the human race. There is only one human race
Hot Wheels World Race was created on 2003-07-12.
IAAF World Race Walking Cup was created in 1961.
The largest road race in the world is actually the 24 Hours of Lemans (258,500). The Indy 500 is an Oval race, not a Road Race (in auto-racing terms), but is still the largest single-day sporting event in the world.
The Clonliffe 2 Mile race held its 116th edition in 2007, making it among the oldest in the world. The world's oldest marathon is the Boston Marathon which held its 112th race on April 21, 2007. The world oldest race are the Atlanteans (even though they are no longe here) they were the first known and civilised race. Hopefully that was what you meant