Phoenix, AZ – Nick Hundley went 3-for-4 with a two-run homer, 6, to avoid getting swept by the NL game series.
Jesus Guzman added two hits and two RBI for San Diego, which scored eight total runs in the first three games of the set. Wade LeBlanc (3-5) gave up four runs in 5 2/3 innings to get the win.
Chris Young and Collin Cowgill had two-run hits during the sixth inning for Arizona, whose division lead over San Francisco was trimmed to 8 1/2 games. The Giants beat the Dodgers on Sunday, and the Diamondbacks' magic number is still eight.
Josh Collmenter (9-9) took the loss after allowing six runs in four-plus innings.
Hundley doubled and scored on James Darnell's base hit in the second inning, and the Padres tacked on three runs in the third.
LeBlanc led off with a single and moved to third on a ground-rule double by Cameron Maybin. LeBlanc was tagged out at home trying to score on a ball hit to short by Chris Denorfia, but Guzman followed with an RBI single.
The runners advanced to scoring position on the throw, and a walk to Hundley loaded the bases. Collmenter walked in a run before Darnell hit a sacrifice fly.
Collmenter walked Guzman to open the fifth before Hundley's two-run blast to left chased the Arizona starter. Guzman's RBI single off Zach Duke in the sixth increased the San Diego lead to 7-0, and at that point it was a matter of holding on.
Henry Blanco began a five-run rally in the bottom half with a leadoff homer to left.
The Diamondbacks had two on with two away later in the inning, and LeBlanc prolonged the inning with a walk to Paul Goldschmidt. He was replaced by Erik Hamren, but Hamren couldn't avoid giving up damage.
Chris Young smacked a two-run double and Cowgill followed with a two-run single, bringing Arizona within 7-5.
The Diamondbacks were within a run in the seventh, when pinch-hitter Justin Upton's grounder plated Blanco.
But San Diego held on. Luke Gregerson came in to get the final out of the inning, then pitched a scoreless eighth. Heath Bell worked around a leadoff walk to Willie Bloomquist in the ninth to record his 37th save.
Game Notes
San Diego improved to 1-3 on its road trip, which ends with a three-game set in San Francisco starting Monday...Arizona starts a six-game trip in LA on Monday. After three games there, the D-Backs head to San Diego...Arizona still leads the season series, 10-5...Collmenter suffered his first loss since August 21, when he allowed a run in seven innings to Atlanta. He hadn't given up six runs since August 5, when he lasted 2 1/3 innings against the Dodgers...LeBlanc snapped a three-start losing streak.
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