Rowing
Russia has sent competitors to most of the Olympic games
China
That was the 2008 Summer Games in Beijing where 11,028 athletes competed.
I am sure it is the Olympics because most countries have competitors in it.
100 metres
The Marathon.
idi
The Marathon.
András Balczó of Hungary with 3 won in 1960, 1968, and 1972. 2 of the golds were won in the team event (1960, 1968) and 1 in the individual event (1972). The team event was discontinued after the 1992 Games. The most golds won in the individual event is 2 by Andrey Moiseyev of Russia (2004, 2008) and Lars Hall of Sweden (1952, 1956).
probably the 100m freestyle...
100 meter dash.
the olympic games because lots of countries take part