grand slam is a home run hit with all three bases occupied by baserunners ("bases loaded"), thereby scoring four runs—the most possible in one play. A walk-off home run with the bases loaded is therefore known as a walk-off grand slam. Since 1916 there have been more than 250 walk-off grand slams hit during Major League Baseball's regular season. From 1903 onwards, only one walk-off grand slam has been hit in the postseason, by Nelson Cruz of the Texas Rangers in Game 2 of the 2011 ALCS. The most recent walk-off grand slam was hit by Giancarlo Stanton of the New York Yankees on September 20, 2022, against the Pittsburgh Pirates. The Yankees also hit the previous walk-off grand slam just one month earlier, when Josh Donaldson hit a walk-off grand slam against the Tampa Bay Rays on August 17, 2022. Three players have hit two walk-off grand slams in a season, Cy Williams in 1926, Jim Presley in 1986, and Steve Pearce in 2017. Pearce's first was on July 27 (an 8–4 victory over the Oakland Athletics) followed by his second on July 30 (an ultimate grand slam, for an 11–10 win over the Los Angeles Angels), becoming the first player in MLB history to hit multiple walk-off grand slams within the span of a single week. Only five pitchers in major league history have surrendered two game-ending grand slam home runs in one season, according to the Elias Sports Bureau: Satchel Paige of the St. Louis Browns, in , to Sammy White of the Boston Red Sox on June 30, and to Eddie Joost of the Philadelphia Athletics on July 15. Lindy McDaniel of the Chicago Cubs, in , to Bob Aspromonte of the Houston Colt .45s on June 11, and to Jim Hickman of the New York Mets on August 9. Lee Smith of the California Angels, in , to Mark McGwire of the Oakland Athletics, on June 30, and to Albert Belle of the Cleveland Indians on July 18. Francisco Rodríguez of the New York Mets, in , to rookies Everth Cabrera of the San Diego Padres, on August 7, and Justin Maxwell of the Washington Nationals on September 30. Rodríguez is the only pitcher to surrender two game-winning grand slams to two rookies. Bud Norris of the Los Angeles Angels, in , to Edwin Encarnación of the Cleveland Indians, on July 25, and Steve Pearce