The Soviet Union's victory over the United States in the 1988 men's basketball final is considered one of the greatest upsets in Olympic history. The Soviet team, led by Arvydas Sabonis, defeated the heavily favored Americans 82-76.

Lindsay Davenport created a major upset by defeating Steffi Graf in the final of the 1996 Olympic women's singles tennis tournament. Davenport, who was unseeded at the time, won in straight sets, 7-6(6), 6-2.

Norway's women's soccer team shocked the world by defeating the United States 3-2 in the semifinals of the 2000 Sydney Olympics. The Norwegian team, led by Hege Riise, went on to win the gold medal.

Carl Lewis made history at the 1992 Barcelona Olympics by becoming the first athlete to win the gold medal in the men's 100-meter dash in two consecutive Olympic Games. He defeated Linford Christie of Great Britain in the final.

Tara Lipinski, at the age of 15, became the youngest Olympic champion in women's singles figure skating history when she won the gold medal at the 1998 Nagano Olympics. She defeated Michelle Kwan of the United States in the final.

Italy's men's volleyball team upset Brazil in the final of the 2004 Athens Olympics, winning the gold medal in a thrilling five-set match. The Italian team, led by Andrea Giani, defeated Brazil 3-2.

Lee Chong Wei of Malaysia created history by winning the gold medal in men's singles badminton at the 2016 Rio Olympics. He defeated Lin Dan of China in the final, becoming the first Malaysian player to win an Olympic badminton title.

Canada's women's hockey team stunned the United States in the final of the 2018 Pyeongchang Olympics, winning the gold medal with a 3-2 victory. The Canadian team, led by captain Marie-Philip Poulin, scored three unanswered goals in the third period to secure the win.

Liu Xiang of China made history at the 2004 Athens Olympics by becoming the first athlete to break the 13-second barrier in the men's 110-meter hurdles. He won the gold medal with a time of 12.91 seconds.

Australia's women's basketball team, known as the Opals, upset the United States in the semifinals of the 2000 Sydney Olympics. The Opals, led by Lauren Jackson, won the game 76-54 and went on to win the gold medal.

Ma Long of China created a major upset by defeating Wang Hao in the final of the 2008 Beijing Olympics men's singles table tennis tournament. Ma Long, who was just 19 years old at the time, became the first player from outside China to win the event since 1988.

Fiji's men's rugby sevens team made history by winning the gold medal at the 2016 Rio Olympics, becoming the first team to win the inaugural Olympic rugby sevens tournament. They defeated Great Britain 43-7 in the final.

Otylia Jedrzejczak of Poland made history at the 2004 Athens Olympics by becoming the first swimmer to break the 2-minute barrier in the women's 200-meter butterfly. She won the gold medal with a time of 1:59.87.

Japan's women's soccer team, known as the Nadeshiko Japan, shocked the world by defeating the United States in the semifinals of the 2012 London Olympics. The Japanese team, led by captain Homare Sawa, won the game 2-1 and went on to win the gold medal.