who has hit a walk off grand slam
Walk-off home run Starting in the 1990s, a walk-off grand slam that erases a three-run deficit has come to be known as an ultimate grand slam.[2][3][4] There have been 29 such instances documented in major league history – all taking place during the regular season,[5] 15 of those coming with two outs.[6] Of the 29 home runs, only Roberto Clemente's was hit inside the park, at spacious Forbes Field on July 25, 1956.[a] Pirates manager/third base coach Bobby Bragan instructed him to stop at third, but Clemente ran through the stop sign to score the winning run.[9] Alan Trammell's June 21, 1988 [10] and Chris Hoiles' May 17, 1996 grand slams occurred under the cliché situation: bases loaded, two outs, full count, bottom of the ninth inning, and down by three runs. The most recent ultimate grand slam was hit by David Bote of the Chicago Cubs on August 12, 2018. 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).[11] 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.[12][13]