National League Game Summary - Arizona at San Diego

San Diego, CA (Sports Network) - Jesus Guzman's two-run homer kick-started a six-run eighth inning the San Diego Padres used to down the Arizona Diamondbacks, 7-1, in the opener of a three-game series at Petco Park.

Cameron Maybin added two hits, including an RBI triple, while Alexi Amarista scored twice for the Padres, who snapped a six-game losing streak.

Andrew Cashner (3-3) tossed a scoreless inning of relief to earn the win. Clayton Richard started the game for San Diego and allowed one run on seven hits and a walk over 6 2/3 innings.

Wade Miley (6-2) gave up four runs on six hits with no walks through 7 1/3 innings to take the loss.

Paul Goldschmidt and Willie Bloomquist each had a pair of hits for Arizona, which lost for the third time in four games.

Arizona was able to break a scoreless tie in the third inning when Aaron Hill reached first on a fielder's choice and rounded the bases on a pair of singles by Justin Upton and Miguel Montero.

But the Padres quickly tied the game in the bottom of the frame when Amarista hit a one-out triple and crossed the plate on Richard's groundout to second.

Neither team would move a runner past second base from there until the Padres' big eighth inning put them on top for good.

Amarista started the rally with a one-out bunt single that Guzman followed by hammering an outside changeup over the left-center field wall for a pinch-hit home run.

"[Guzman] was due something big," said San Diego manager Bud Black.

After Chris Denorfia's single knocked Miley out of the game, Maybin greeted new pitcher David Hernandez with a triple into the gap in left-center field.

Yonder Alonso then worked a walk before Carlos Quentin singled in Maybin. Hernandez was replaced by Brad Ziegler after a Chase Headly walk loaded the bases and Nick Hundley capped the rally going by slapping a sinking liner into right field that Upton had deflect off the tip of his glove, allowing Alonso and pinch-runner Anthony Bass to score for a 7-1 lead.

Brad Brach worked a perfect ninth to seal the win for the Padres.

"Things happened quick there in the eighth," said Bloomquist.