Alexi Amarista launched a grand slam for his first major league homer, capping a six-run rally in the ninth inning off Houston closer Brett Myers and lifting the San Diego Padres over the Astros 7-3 Thursday night.
Andrew Cashner held Houston hitless for six innings in only his third big league start. Carlos Lee broke up the bid with a one-out single in the seventh and Brian Bogusevic followed with a homer for a 2-1 lead.
The Astros added a run in the eighth, and Myers (0-3) came on in the ninth with a 3-1 lead.
Myers allowed a leadoff double by pinch hitter John Baker and a one-out single by pinch-hitter Mark Kotsay. Third baseman Chris Johnson's second error of the game gave San Diego a run, and Carlos Quentin was hit by a pitch with the bases loaded, tying it at 3.
With two outs, Amarista homered into the second row in right field. The shot by the diminutive Amarista, who is listed at 5-foot-7 but looks smaller than that, sent the few remaining fans streaming for the exits.