DENVER (AP) - Tim Lincecum had a tough night on the mound and in the field.
It continued a troubling trend for the defending World Series champions.
Lincecum struggled through five innings and committed one of the three errors by his team, and the San Francisco Giants fell to the Colorado Rockies 10-2 on Saturday.
``It's been a tough road trip for the starters,' manager Bruce Bochy said. ``This is as tough a stretch as we've gone through. We're still fortunate to be in a good position, but we know it's got to get better here. Tack on a few more errors.'
The Giants have committed 12 errors in dropping four of the past five games. They have eight errors in the three games at Coors Field.
``We just came off a really good homestand and everything's that hit is either not at us or we're having some difficulties handling tough balls,' outfielder Hunter Pence said. ``It's a funk.'
Rockies starter Tyler Chatwood shut down San Francisco's offense and allowed his teammates to build a big cushion.
Promoted from Triple-A Colorado Springs before the game for his second stint with the Rockies this season, Chatwood (2-0) had a shaky second inning but settled in after that and handcuffed the Giants.
Wilin Rosario made a nifty defensive play to thwart a big second inning and drove in three runs - two with a home run - for the Rockies, who beat the Giants for the second straight time after snapping a 10-game losing streak to them with a 10-9 win one night earlier, ending their longest streak over a division opponent since divisional play began in 1969, according to STATS.
Lincecum (3-3) committed a costly throwing error that led to a three-run third inning and also had a balk when he slipped off the mound that led to another run in the fourth before Rosario took him deep for his ninth homer in the fifth.
``Kicking the ball around, that was probably the biggest frustrating thing for myself when I knew I could have made that play,' Lincecum said of his error. ``After that I didn't collect myself and concentrate. Kind of unraveled.'
The Giants' defensive slump continued despite a team meeting before the game in which Bochy addressed San Francisco's poor defense of late.
``You're going to have ups and downs, whether it's hitting or sometimes defensively, but 13 errors in 10 games is too many,' Bochy said after the meeting.
Then, he watched the Giants commit three more errors.
Catcher Buster Posey airmailed a throw into center field on Carlos Gonzalez's stolen base attempt in the first inning. Gonzalez trotted to third but he was stranded there when Lincecum got Troy Tulowitzki to ground out to short to end the inning.
In the top of the second inning, Posey tried to advance to third on a pitch that got past Rockies catcher Rosario, but the ball ricocheted right back to Rosario, who spun and nailed Posey by several feet. Brandon Belt followed with a two-out double to the right-field corner.
Gregor Blanco drove in Belt with a bloop single to center, and Brandon Crawford drew an intentional walk before Lincecum was caught looking at the third strike, thwarting what could have been a bigger inning.
The Giants' second error proved more costly as Lincecum's bad throw on a comebacker led to a big third inning for Colorado.
Dexter Fowler doubled down the left-field line, scoring Charlie Blackmon from second to tie it at 1. Fowler scored when Lincecum fielded Josh Rutledge's chopper and threw the ball into right field. Rutledge ended up at third base and trotted home on Gonzalez's groundout.
``Trying to make something there out of what's not possible,' Bochy said. ``That's what we've got to stop doing, compounding the problem. We've done it a few too many times. It might have caused him to lose a little focus.'
Lincecum slipped off the rubber while pitching to Blackmon in the fourth, resulting in a balk that sent Nolan Arenado to second base. He took third when Blackmon flied out to center and scored on Chatwood's single up the middle, making it 4-1.
The Giants put runners at the corners in the fifth, but Posey grounded out to the mound to end the threat, and Rosario's two-run homer made it 6-1 in the fifth.
All of the six runs Lincecum allowed in five innings were earned. He gave up seven hits and walked a pair.
``It was just frustrating,' Lincecum said. ``Just not consistently hitting spots, leaving balls up.'
Rosario's 60-foot dribbler down the third base line off Jean Machi in the seventh drove in Fowler from third to make it 7-1.
Crawford's RBI single made it 7-2 in the eighth, but the shortstop committed San Francisco's third error in the bottom half of the inning when he took his eye off a throw back into the infield, allowing Fowler to advance to second following an RBI single.
``I feel people want to press just because of the fact that we have been doing that,' Lincecum said of the errors. ``Everyone wants to make the big play, everybody wants to pick up the team. We're going to take it personally and hard when we don't do that.'
Tulowitzki added a two-run single off George Kontos to make it 10-2.
Josh Outman threw two effective innings of relief and Wilton Lopez got the final four outs.
``This is a tough group,' Bochy said. ``They've been resilient, they've had their backs to the wall many times. It'll be important we do bounce back.'
Notes: Marco Scutaro went 2 for 4 to extend his hitting streak to 17 games. ... Every starting position player for San Francisco had at least one hit. ... Rockies OF Michael Cuddyer says he doubts his neck will bother him again this season after getting an epidural that relieved pain and stiffness. He returned to throwing and taking batting practice Saturday. ... The Giants and Rockies wrap up their four-game series Sunday with LHP Barry Zito (3-2) and RHP Juan Nicasio (3-1) squaring off.
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