Depends on what sport you are talking about. For hockey, my personal favorite, it was the US hockey team. They nicknamed it the Miracle on Ice.
The United States boycotted the 1980 Olympics.
Andrew Astbury
July 29, 1980.
Speedskater Eric Heiden won gold in the 500m, 1000m, 1500m, 5000m, and 10000m events at the 1980 Winter Olympics in Lake Placid.
Eric Heiden won 5 gold medals in all 5 speed skating events at the 1980 Winter Olympics.
Soviet Union
The US won 12 medals at the 1980 Winter Olympics: 6 gold, 4 silver and 2 bronze.
Team USA won this game. they beat finland.
Nikolai Andrianov
The United States
Zimbabwe won the first gold medal in women's hockey at the 1980 Moscow Summer Olympics. Czechoslovakia won silver and USSR won bronze.
Men: India Women: Zimbabwe