Giles hits 3-run HR as Padres deny Webb 20th win

Brian Giles and Kevin Kouzmanoff both drove in three runs as the San Diego Padres denied Brandon Webb his 20th victory with a 9-2 win over the Arizona Diamondbacks on Tuesday night.

Webb (19-5) lost in his first bid to become the NL's first 20-game winner since 2005 with one of his few bad outings this season, allowing six runs and nine hits in 4 2-3 innings.

Giles hit a three-run homer and Kouzmanoff added a two-run double in a five-run third inning as Arizona lost its third straight and fourth in five games. Kouzmanoff added an RBI double in the seventh.

Chase Headley drove in two runs for San Diego, which has the second-worst record in the NL (50-82).

The Diamondbacks retained their three-game lead over the Los Angeles Dodgers in the NL West.

Rookie Chad Reineke (2-1) pitched five innings for the win and combined with five relievers on a three-hitter.

Webb had his shortest outing in 13 starts since he lasted 3 1-3 innings in a 15-1 loss at Oakland on June 4. The loss was Webb's first in nine decisions.

Webb has pitched less than six innings only four times in 28 starts.

Giles hit his 10th home run with one out in the third after singles by Nick Hundley and Tadahito Iguchi for a 3-0 lead. After a single by Luis Rodriguez and a two-out walk to Adrian Gonzalez, Kouzmanoff doubled in both runs.

Mark Reynolds hit a two-run homer, his 25th, with two outs in the fourth off Reineke, but the Diamondbacks could manage little else.

Reineke gave up two runs and two hits in his third major-league start.

Webb had won both previous starts against San Diego this season without allowing an earned run in 13 innings.

The Padres won a home series for the first time since winning two of three against the Dodgers, June 10-12. San Diego, which won the first two games of the three-game set against Arizona, broke a string of nine straight losing homes series.

Notes:@ The NL has not had a 20-game winner since St. Louis' Chris Carpenter, Florida's Dontrelle Willis and Houston's Roy Oswalt in 2005. ... Webb's ERA rose from 2.74 to 2.96. ... Arizona's Adam Dunn walked three times to raise his major league-leading total to 99.

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