The Red Sox, trying to end The Curse of the Bambino, led the Mets 3-2 in the series and scored two quick runs in the first two innings of Game 6 in New York.
The Mets tied it with two in the fifth, but an error by Ray Knight in the seventh gave Boston a 3-2 lead and just nine outs to go for their first title since the Babe was sold to the Yankees.
But Gary Carter hit a sac fly in the eighth inning to tie the game and eventually force it into extra innings.
In the top of the 10th inning, Dave Henderson homered to give the Sox a lead, and Marty Barrett singled in Wade Boggs to make it 5–3.
When Wally Backman and Keith Hernandez were retired to start the bottom of the 10th, the Red Sox were one out away from the series victory. The scoreboard in right-center field actually had flashed, briefly, "Congratulations, Boston Red Sox, 1986 World Champions."
That's when the blame game in Boston began.
Was it Calvin Schiraldi's fault? Or was it Bob Stanley's? Turns out, everyone turned on poor Billy Buckner, who was left in the game because Red Sox manager John McNamara wanted the veteran to be on the field for the Red Sox victory.
Carter and pinch-hitter Kevin Mitchell had back-to-back singles (even after the Mets were down to their final strike) and Knight then lined an 0-2 pitch from Schiraldi into center field to score Carter and make it 5-4.
Stanley came in to relieve Schiraldi and threw a wild pitch to score Mitchell.
Four pitches later Mookie Wilson hit a nubber up the first base line, going through Buckner's legs and producing the infamous and iconic Buckner error, allowing Knight to score and giving the Mets an improbable victory.
New York would rally again in Game 7 to win the title.