Ryan Vogelsong was tagged for eight runs -- seven earned -- in three-plus innings by the Rockies on Thursday.
Matt Duffy went 0-for-4 on Thursday, dropping his average under .300 for the first time since July 25.
Chris Heston will start for the Giants on Friday against the Rockies in Colorado.
Brandon Belt is not in the Giants starting lineup on Thursday.
Brandon Crawford (calf) remains out of the Giants starting lineup on Thursday.
Tim Lincecum underwent season-ending surgery early Thursday morning on his hip.
Giants GM Bobby Evans confirmed Thursday that Tim Lincecum (hip) is done for the season.
Gregor Blanco (neck) went 0-for-4 with two strikeouts in the Giants' loss to the Dodgers on Wednesday.
Buster Posey went 3-for-4 in a 2-1 loss to the Dodgers on Wednesday.
Mike Leake took a tough-luck 2-1 loss against a stellar Clayton Kershaw and the Dodgers on Wednesday.
Matt Cain (elbow) will begin a rehab assignment Friday with Triple-A Sacramento.
Brandon Crawford (calf) is out of the Giants' lineup again Wednesday.
Giants released INF Everth Cabrera.
Giants RHP prospect Jason Forjet spun eight shutout innings Tuesday in a win for High-A San Jose.
Madison Bumgarner gave up two runs in seven innings but lost to the Dodgers on Tuesday.