List of Major League Baseball ultimate grand slams

In baseball, an ultimate grand slam is a walk-off home run that occurs when the bases are loaded (i.e., there are runners on the first, second, and third bases) and the scoring team is trailing by three runs prior to the hit. As a grand slam awards the scoring team four runs, an ultimate grand slam gives the scoring team the win. It has occurred 35 times in Major League Baseball (MLB), beginning with Roger Connor on September 10, 1881. Kody Clemens is the most recent MLB player to score an ultimate grand slam, having done so on July 30, 2026. No player has hit more than one ultimate grand slam.

Players

+KeyPlayerName of the playerDateDate of the ultimate grand slam gameTeamThe player's team at the time of the gameOpposing teamThe team against whom the player hit the ultimate grand slamScoreFinal score of the game, with the player's team score listed firstElected to the Baseball Hall of Fame

+MLB players who have hit an ultimate grand slam#PlayerDateTeamOpposing teamScoreReferences / notes1Troy TrojansWorcester Worcesters8–72New York YankeesChicago White Sox6–53Cincinnati RedsPittsburgh Pirates4–34Pittsburgh PiratesSt. Louis Cardinals7–65New York GiantsSt. Louis Cardinals8–76Philadelphia AthleticsSt. Louis Browns7–67Milwaukee BravesPhiladelphia Phillies5–48Pittsburgh PiratesPhiladelphia Phillies6–59Pittsburgh PiratesChicago Cubs9–810Chicago CubsHouston Colt .45s6–511Philadelphia PhilliesSan Francisco Giants7–612St. Louis CardinalsSan Diego Padres11–1013Cleveland IndiansBoston Red Sox8–714St. Louis CardinalsHouston Astros7–615Philadelphia PhilliesNew York Mets10–916Texas RangersMilwaukee Brewers7–617Seattle MarinersMinnesota Twins8–718California AngelsDetroit Tigers13–1219Detroit TigersNew York Yankees7–620Baltimore OriolesSeattle Mariners14–1321Pittsburgh PiratesHouston Astros9–822New York YankeesMinnesota Twins13–1223Cincinnati RedsCleveland Indians9–824Atlanta BravesCincinnati Reds10–925Cleveland IndiansToronto Blue Jays5–426Houston AstrosChicago Cubs6–527Arizona DiamondbacksLos Angeles Dodgers7–628Detroit TigersOakland Athletics5–429Toronto Blue JaysLos Angeles Angels11–1030Chicago CubsWashington Nationals4–331Milwaukee BrewersSt. Louis Cardinals6–532New York YankeesTampa Bay Rays8–733New York YankeesPittsburgh Pirates9–834San Francisco GiantsWashington Nationals11–1035Minnesota TwinsKansas City Royals4–3

Notes

References