LaMonte Wade Jr. singled over leaping All-Star shortstop Fernando Tatis Jr. in the ninth inning to bring in the go-ahead run and the San Francisco Giants beat the staggering San Diego Padres 6-5 Tuesday night to keep a one-game lead in the NL West. Wade's hit was the third straight one-out single off Mark Melancon (4-3) and brought in Brandon Belt. Melancon, who leads baseball with 37 saves, started the ninth with the score tied at 5.