SAN DIEGO -- Jhoulys Chacin showed his old Rockies teammates Saturday night just how much he's enjoying his home. Chacin didn't give up a hit until the sixth -- his final inning -- as the Padres took their second shutout in three games, and sent the Rockies to their third shutout in the last four with a 4-0 victory at Petco Park.
The Rockies hold the National League's second Wild Card slot, but the loss -- their fifth in the last six games -- tightened the race. The Brewers, who took a 4-3 victory over the Cubs on Travis Shaw's 10th-inning, two-run homer, pulled to a game behind the Rockies. The Cardinals, who lost at Pittsburgh, 11-6, are at 1 1/2 games back.
Chacin (13-10), who pitched for the Rockies from 2009-14 before joining the Padres, gave up DJ LeMahieu's single with one out in the sixth. Then he walked two before forcing a Gerardo Parra popup. He lowered his ERA at Petco to 1.79 to surpass the Indians' Corey Kluber (1.81) for the Major League lead in home ERA.
"You have to feel comfortable at home," Chacin said. "I feel like every time I pitch at home I feel really great and I make my pitches. That's been the difference."

Saturday's result meant the Rockies were shut out three times in a four-game span for the first time in club history -- not the kind of history manager Bud Black and the club want to make.
"Tonight, we had some guys on but couldn't get the big hit again -- that's sort of been a common theme," Black said.

Ian Desmond, who had two of the Rockies' five hits, added, "You've got to have a sense of urgency, but at the same time you've got to maintain your head and keep doing what we've been doing all year. No reason to change now. As a team and individually, there are a lot of guys that have had a lot of success this year. The process is proven."
Rockies righty Chad Bettis, making his first start in nine days, gave up one run on Yangervis Solarte's two-out single in the fifth. The hit came after Bettis bounced a changeup for a wild pitch that allowed William Myers to take second. In all, Bettis allowed seven hits in 4 2/3 innings before being pulled after 85 pitches. It was a better outing for Bettis, who fought off testicular cancer and has been searching for consistency since returning in August.
"It's crunch time right now," said Bettis, who lamented his execution on the wild pitch. "It's a little bit exhilarating, but at the same time you've got to make sure you're focused."

The Padres squeezed out another run in the sixth with two hits off lefty Kyle Freeland and pinch-hitter Christian Villanueva's dribbler against Antonio Senzatela that scored Cory Spangenberg. The Padres added three in an eighth inning that was aided by Desmond's throwing error. Since last Sunday, the long-eliminated Padres have gone 5-2 against the Rockies and the D-backs -- holders of the top NL Wild Card.
MOMENTS THAT MATTERED
Crown Jhoul: After center fielder Manuel Margot couldn't come away with LeMahieu's sinking single, Chacin found himself in the stretch facing the middle of the Rockies' lineup. He walked Carlos Gonzalez and Nolan Arenado, loading the bases for Parra. Parra entered the contest with plenty of success against his fellow Venezuelan, going 9-for-29 off Chacin, but he popped up to left on the first pitch he saw to end the threat and preserve Chacin's gem.
"I was just trying to make my pitches and attack the hitters," Chacin said. "I was just having fun. I'm trying to finish the season strong."

Not your Buddy: With Chacin out of the game, the Rockies didn't wait to threaten against San Diego's bullpen. A pair of singles from the bottom of Colorado's order against right-hander Craig Stammen prompted Padres manager Andy Green to bring in lefty Buddy Baumann to face Charlie Blackmon. Baumann struck out Blackmon on three pitches, making left-handed batters 3-for-24 with 10 strikeouts against him. The Padres' bullpen combined for three shutout innings behind Chacin.

QUOTABLE
"I think it's fun to see him be in the middle of a couple of rallies for us. He was good today. He's getting better and better." -- Green, on catcher Austin Hedges, who had his second three-game of the season.
BAD TIME FOR HARD LESSONS
Desmond, in his first year playing first base, was involved in two eighth-inning plays that didn't work out -- one a costly error.
With Spangeberg at third, Rockies reliever Chris Rusin appeared to have Hedges picked off. Hedges took off for second and Desmond, knowing the Padres tend to have the trail runner create a rundown so the lead runner can score, made no throw.
With the bases loaded, however, Desmond fielded Erick Aybar's grounder and, instead of throwing home for a force, stepped on first, then sailed his throw over catcher Jonathan Lucroy, who would have needed to make a difficult tag.
"In that position, I was just kind of relying on instincts -- instincts that I don't really have at first base," Desmond said. "Now I've got one to file away."

WHAT'S NEXT
Rockies: Rookie righty German Marquez (10-7, 4.41 ERA) took steps in the right direction with his last start, allowing three runs on eight hits with five strikeouts and one walk in a loss at San Francisco. He will start Sunday in the season's final meeting with the Padres at Petco Park at 2:40 p.m. MT.
Padres: Right-hander Luis Perdomo starts San Diego's final home game of 2017 at 1:40 p.m. PT. Perdomo, who also started the Padres' home opener, allowed two runs in 5 1/3 innings against the D-backs in his previous start, ending his streak of 10 straight outings of at least six innings.
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