Kansas City ended a 30-year wait for a World Series title as the Royals reigned over Major League Baseball with a 7-2, 12-inning victory over the New York Mets in New York.
A pinch-hit single by utility infielder Christian Colon scored the go-ahead run off reliever Addison Reed in the 12th and the Royals added four more runs in capturing the best-of-seven championship series by four games to one.
The visitors swarmed into the middle of the diamond in the hushed Citi Field stadium for a celebration by the mound where closer Wade Davis had struck out the side to end it.
The Royals' triumph was all the sweeter coming after their agonizing Game Seven loss in last year's World Series to the San Francisco Giants.
It marked Kansas City's first Fall Classic crown since their 1985 triumph against cross-state rivals the St. Louis Cardinals.
The title-clinching victory was Kansas City's remarkable eighth come-from-behind win of the postseason.