Jordan Chiles Lost a Bronze. She’s Not the First American Affected by a Medal Change.

Taking away an Olympian’s medal is unusual — but not uncommon. On Sunday, the American gymnast Jordan Chiles became the latest athlete to lose one.

At the Paris Olympics, Ms. Chiles had won bronze in the individual floor exercise. She originally finished in fifth place with a score that was less than one-tenth of a point from third place, but after her coach appealed, she won the bronze. That appeal, however, came four seconds too late, a court ruled, reinstating Ms. Chiles’s original score. The bronze will now go to Ana Barbosu of Romania, according to the International Olympic Committee. The U.S. Olympic and Paralympic Committee intends to appeal the ruling.

Several other athletes in Olympic history have had to return a medal — most commonly after a failed drug test or the use of a banned substance. Here are some other notable cases of U.S. Olympians giving up their medals — or winning new ones after another athlete was disqualified.

Jim Thorpe, 1912 Stockholm Games

The American track and field star Jim Thorpe won two gold medals in the pentathlon and decathlon in Stockholm, setting a world record in the latter event, with 8,412 points, that stood until 1948.

But Mr. Thorpe was also talented in several other sports, including baseball, basketball and football.