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A century of Olympic medal power, and who traded the lead
The Olympic medal table is a leaderboard of nations that mostly stays the same and then, every few decades, does not. The United States has finished first in twenty-nine Summer Games more often than anyone, and it has never once been the only story. Behind the leader, the order churns: a superpower rises, a small state punches above its weight, a country that did not medal until 1984 climbs to second. The medal count is a record of who was strong, and exactly when.

Each line above is one nation’s rank by medals won at a Summer Games. Rank one sits at the top. The American line barely moves. Everything interesting happens underneath it: the Soviet red line that ends mid-chart when the state did, and the Chinese green line that arrives late and climbs. The rest of this post takes those two stories apart.
The data is the TidyTuesday Olympic record, 271,116 athlete-event rows from 1896 to 2016. One wrinkle matters before any count is trustworthy. A team that wins a gold shows up once per athlete, so a rowing eight is eight rows for one medal. I collapsed every medal to one row per Games, event, medal and NOC, which drops the 39,783 athlete-medal rows to 18,905 actual medal events, a 52.5% cut. Every count below is medal events won, the number a medal table reports. This article is the Summer Games story; the 2,853 Winter medals sit out of it except where noted.
Start with the constant. Across all Summer Games the United States has won 2,544 medals, against 1,005 for the second-place Soviet Union. That is a 2.53 times margin over the runner-up and 15.8% of every Summer medal ever awarded. No other nation is close.

The share tells the opposite of a decline. In 1904 at St. Louis the Americans took 82.4% of the medals, because almost no one else crossed the ocean to a Games held in the American Midwest. That number is a story about who showed up, not who was best. By 2016 the US share was 12.4%, on 121 medals, the most of any nation that year. The picture is a pie that the host nation no longer owns: the United States still cuts the largest slice, but the table now has eighty nations reaching for the rest. Dominance did not end. It got crowded.
The Soviets entered the Summer Games in 1952 and were second that year. By their 1980 home Games in Moscow they won 195 medals, 30.9% of everything awarded, the single largest share any nation has taken since the early American walkovers. Read the red line on the flagship: it trades rank one and two with the United States across four Games, then stops.

It stops because the country did. The Soviet Union dissolved in December 1991, and the next Games show the gap. In 1992 the former republics competed once as the Unified Team and won 112 medals, 13.8% of the Games, and then split into separate flags. Russia inherited the largest piece and won 56 medals in 2016, 5.8% of the table, less than a fifth of the old Soviet peak share. A line that spent forty years near the top of the leaderboard does not fade out. It is cut off at the year the state ended.
The stacked chart above hides a second nation inside the Soviet bloc. East Germany, a country of seventeen million people, took 126 medals in 1980, 20.0% of the Games, and finished second, ahead of the United States, ahead of every nation but the USSR itself. A country smaller than present-day Florida outscored every other nation on Earth except its patron.
That result did not come for free, and the honest footnote belongs here: East German sport ran a state doping program later documented in court, so the 1980 figure is a real medal count built on a record we now know was chemically assisted. The data cannot separate the training from the pharmacology. What it can show is the shape: a tiny state that briefly out-medaled the world, and then disappeared from the table at reunification in 1990 with the rest of the bloc. The smallest giant left the fastest.
China won its first Summer medals in 1984, thirty-two of them. The line on the flagship starts there, at rank six, and climbs every Games.

The peak is the home Games. In 2008 at Beijing, China won 100 medals, 10.4% of the table, and finished second behind only the United States. Run the arithmetic on the span: a nation that had zero Olympic medals before 1984 was the second sporting power on the planet twenty-four years later. The home-Games bump faded the way home-Games bumps do, and China settled to 70 medals in 2016, still comfortably in the top tier. The Soviet rise took a generation and a command economy. China did it faster.
Strip the flags and the medal table is a hundred-year record of national projects. The American line is the steady one because the project was never about a single Games. The Soviet and East German lines are vertical and then absent because they were tied to states that wrote sport into policy and then stopped existing. The Chinese line is the new vertical. A medal count looks like a sports result. It reads like a map of where ambition was funded, and for how long.