Russia has sent competitors to most of the Olympic games
the most popular event is running
The lighting of the Olympic Torch Flame.
I am sure it is the Olympics because most countries have competitors in it.
That was the 2008 Summer Games in Beijing where 11,028 athletes competed.
probably the 100m freestyle...
100 meter dash.
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).