ULTIMATE GRAND SLAMS
Every Major League Player Who Hit an Ultimate Grand Slam | Baseball Almanac
Baseball Almanac is pleased to present a comprehensive chart of every player who has hit an ultimate grand slam, or a walk off super slam. Super? Ultimate? Well, if we only counted "simple" walk off grand slams the event would not be as rare as people think:
From the first Opening Day in Major League Baseball history, back in 1876, through October 25, 2026, there are two-hundred eighty plus instances of players hitting a walk off-grand slam! [Research Available If Needed]
So to make it an ultimate grand slam, we list players on the home team who came to the plate and hit a grand slam when trailing by three runs in the bottom of the ninth inning (or extra innings) thus winning the game. Research by Baseball Almanac.
"Roger Connor was a complete player — a deft first baseman and an agile base runner who hit 233 triples and stole 244 bases despite his size (6 feet 3 inches and 200 pounds)." - New York Times (Vecsey, George. Going Deep, Before Bonds and Aaron and Ruth. 13 May 2007.)
There have been thirty-five instances of a player hitting an ultimate grand slam by thirty-five different ballplayers — not one player in Major League Baseball history has ever hit more than one walk-off super slam.
Did you know that the players whose names are bold hit an ultimate grand slam, not only at home and down by three runs, but also when there were two outs?
Did you know that Del Crandall hit his ultimate grand slam in the ninth inning, down by three runs, with two outs, AND a full pitch count — the first recorded instance of this type of ultimate grand slam?
Did you know that Babe Ruth, Jason Giambi, Ryan Roberts, and Josh Donaldson hit their ultimate grand slam in the extra innings?
Did you know that Roberto Clemente hit the ONLY inside-the-park ultimate walk off grand? The box score:
Roberto Clemente | The Montgomery Advertiser | 26 July 1956
Is an ultimate grand slam the most exciting feat? Have you ever seen an ultimate grand slam, or a "regular" walk off grand slam? Tell us on our Baseball Almanac Facebook Group, on Baseball Almanac Twitter, via Baseball Almanac Messenger, or our baseball forum — Baseball Fever.
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