Simone Biles reminded everyone once again on Friday she's the G.O.A.T. of gymnastics ... 'cause she won her sixth all-around gold medal -- and became the most decorated gymnast EVER!!!
The 26-year-old made the history at the Artistic Gymnastics World Championships in Antwerp, Belgium ... after she scored 58.399 points on the balance beam, floor, vault and uneven bars.
Her sixth gold medal in the all-around event tied her with Japan's Kohei Uchimura for the most titles by man or woman ... but, perhaps more importantly, it gave her a combined 34 world and Olympic medals -- a number no one has ever reached.