(CNN) Simone Biles became the most decorated gymnast in the world championships' history on Sunday with a gold medal on the balance beam in Stuttgart, Germany on Sunday.

The US gymnast won her 25th career world medal at the Artistic Gymnastics World Championships , surpassing Belarusian Vitaly Scherbo's career total of 23.

A four-time Olympic champion, Biles now holds 19 golds. Scherbo, a Belarussian who competed in the 1990s, had been the most decorated gymnast in world championship history.

On Saturday, Biles won the vault by more than half a point, averaging 15.399 for her two attempts. US gymnast Jade Carey won silver and Elissa Downie of Great Britain took bronze.

The world vault title is Biles' second (2018). She also won gold in the event at the 2016 Olympics.

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