DENVER - (AP) Troy Tulowitzki homered and drove in a career-high five runs and Jorge De La Rosa won his career-best sixth straight start, leading the Colorado Rockies' 8-2 rout of the San Francisco Giants on Saturday night.
The Rockies also moved a game ahead of the Giants in the NL wild-card race.
De La Rosa (8-7) allowed one run on seven hits over 7 1/3 innings with no walks and seven strikeouts. He retired the first 11 batters he faced, six by strikeout, before Pablo Sandoval stroked a double into right field with two outs in the fourth.
Jonathan Sanchez (3-9) matched De La Rosa inning for hitless inning until Todd Helton led off the fourth with a line-drive single to right for Colorado's first hit. One night earlier, Matt Cain had held the Rockies without a hit until Ian Stewart's single with two outs in the fifth.
Right after Helton's single, rain sent the fans scurrying for shelter or umbrellas. Garrett Atkins drew a walk and one out later, Tulowitzki sent Sanchez's first offering into a downpour and over the wall in right-center for his 18th homer and a 3-0 lead.
The Giants pulled to 3-1 on Sandoval's RBI double in the sixth, which scored Andres Torres from first base.
Tulowitzki's run-scoring double in the bottom half of the sixth restored Colorado's three-run cushion and chased Sanchez, who gave up five earned runs on five hits over five-plus innings.
Chris Iannetta sent a pitch from right-handed reliever Justin Miller to the track in center for a sacrifice fly and a 5-1 lead over the Giants, who fell to 3-6 on their 10-game trip that concludes Sunday at Coors Field.
Randy Winn's one-out triple in the eighth ended De La Rosa's night and brought in Rafael Betancourt. Pinch-hitter Fred Lewis grounded out to short, scoring Winn to make it 5-2.
Again, Tulowitzki responded, slapping an RBI single off Merkin Valdez in the bottom half of the inning, sparking a three-run that included a run-scoring double from Iannetta and a sacrifice fly from pinch-hitter Seth Smith.
Right-hander Jhoulys Chacin made his major league debut for Colorado in the ninth, allowing no hits, a walk and a wild pitch and striking out two.