Matt Cain lost to the Cubs on Tuesday, surrendering six runs in five innings of work.
Matt Cain pitched six innings of two-run ball and struck out six Wednesday against the Cardinals.
The Giants have yet to officially list a scheduled starter for Wednesday's game in St. Louis.
Giants manager Bruce Bochy was noncommittal Saturday when asked if Matt Cain will remain in the starting rotation.
Matt Cain surrendered five runs on six hits over 4 2/3 innings in a no-decision against the Nationals on Friday.
Matt Cain surrendered five earned runs over four innings Saturday in a loss to the Cubs.
Matt Cain took a no-decision after yielding four runs in five innings to the Braves in a 12-inning loss on Monday.
Matt Cain yielded four runs in six innings, taking the loss on Tuesday versus the Brewers.
Matt Cain held the Padres to one run over six innings to earn the victory in the Giants' 7-1 win Wednesday.
Matt Cain was lifted after giving up four runs in five innings Friday in a no-decision against the Diamondbacks.
Giants manager Bruce Bochy announced Thursday that Matt Cain, Jake Peavy and Madison Bumgarner would start the first three games out of the All-Star break against the Diamondbacks.
Matt Cain kept the Mets off the board over six innings, earning the win on Tuesday.
Matt Cain struggled in his first start of the 2015 season, allowing five runs on seven hits over five innings in Thursday's 5-4 loss to the Marlins.
Giants activated RHP Matt Cain from the 15-day disabled list.