SAN DIEGO -- The Arizona Diamondbacks did just enough wrong to cost them a game.
Arizona committed an uncharacteristic three errors and were unable to take advantage of Tyson Ross' control problems to give the San Diego Padres to a 4-2 win over the Diamondbacks on Friday night.
The three errors led to one unearned run. Combine that with failing to make Ross pay for his wildness and it added up to a loss.
"We are usually tighter than that," Diamondbacks manager Chip Hale said. "They made it happen. They pushed the envelope and they did a nice job and it worked."
Ross (5-7) allowed just two hits and struck out seven in six innings. But the right-hander tied his season high with five walks, including walking the bases loaded in the third that led to the Diamondbacks' two runs.
But Arizona couldn't reach Ross for any further runs and lost for the third time in four games.
"We were patient and we saw him make a lot of pitches," said Arizona catcher Welington Castillo. "But he made his pitches when he had to."
Ross settled down after the third and combined with the relievers to retire 13 of the final 14 batters. Craig Kimbrel worked the ninth inning for his 19th save in 20 chances.
San Diego won for just the fourth time in 10 games since interim manager Pat Murphy took over June 16.
Matt Kemp's sacrifice fly in the sixth broke a 2-all tie. Cory Spangenberg scored just ahead of the throw by center fielder A.J. Pollock.
Robbie Ray (2-3) allowed three runs -- two earned -- on five hits in six innings.
Kemp batted leadoff for the third straight game and had a double and picked up his 13th RBI in his last 19 games. Spangenberg had three singles, stole two bases and scored twice.
Ross walked all five batters in the first three innings, including the third when he issued a leadoff walk, struck out two batters, then walked consecutive batters to load the bases for Paul Goldschmidt.
Goldschmidt grounded a 3-2 pitch into the center field to drive in two runs as Arizona took a 2-1 lead.
Ross, who increased his season walks total to a major league-high 48, won consecutive starts for the first time this season.
Spangenberg led off the third with a single, was sacrificed to second, stole third base and scored when Castillo's throw went into left field.
Alonso had an RBI double in the first after Derek Norris reached on Goldschmidt's fielding error.
In 11 games against San Diego, Goldschmidt is batting .351 with three home runs and 11 RBIs.
Diamondbacks: RHP Archie Bradley (right shoulder tendinitis) will visit orthopedic surgeon Dr. James Andrews to have his right shoulder examined after he complained of discomfort after his rehab start on Wednesday.
Padres: C Tim Federowicz, out since right knee surgery in March, is hoping to start a rehab next week.
Diamondbacks: Jeremy Hellickson (5-4) has gone 4-1 in his last seven starts.
Padres: RHP Andrew Cashner (2-9, 4.35 ERA) will look to avoid becoming the majors' second 10-game loser. Cashner has allowed 62 runs in 89 innings -- but only 43 earned runs.
