What is the most successful sports in the Olympics?
The most successful sport in the Olympics is hockey.
In the Summer Olympics, Japan has won the most medals in gymnastics (92) and the most gold medals in judo (35). Swimming and wrestling are also sports that Japan has done very well at. In the Winter Olympics, Japan has won the most medals in speed skating (12) and the most gold medals (3) in ski jumping.
The most successful Olympics was Los Angeles in 1984, where NZ won eight gold medals (and a total of 11) and finished 8th on the medal table. However, since these Olympics were boycotted by the USSR and the GDR among other nations this total was arguably inflated. The most successful other than this was Seoul in 1988 where 13 medals (including 3 gold) were won.
The Winter Olympics have competitions for sports that are considered 'cold weather sports' .... sports that can only be done on snow or ice. These sports include skiing, speed skating, and ski jumping. The Summer Olympics have competitions for sports that are considered 'warm weather sports'. These sports include athletics (track and field), marathon, and equestrian. There are Winter Olympics and Summer Olympics because you can play different sports in different seasons.
The two most successful sports franchise world wide are the New York Yankees of American Major League Baseball, and the Manchester United soccer club in England. Edit: Manchester United aren't even the most successful English team, that is Liverpool FC. In Europe, Real Madrid are considered the most successful with FIFA voting them the most successful club of the 20th century.
The Summer Olympics are held during the summer and have summer sports and competitions. The Winter Olympics are held during the winter and have winter sports and competitions. Both Olympic competitions are held every four years, but Winter Olympics are held two years after the most recent Summer Olympics.