Phoenix, July 24: Gerardo Parra, Chad Tracy and Justin Upton homered to account for seven runs Thursday and push then Arizona Diamondbacks to an 11-4 win over Pittsburgh.
The Pirates scored four times in the fifth inning to take a 4-1 lead, and then fell victim to the long ball.
Parra's two-run homer in the fifth forged a 4-4 tie, Tracy finished off a five-run seventh with a three-run blast and Upton hit a two-run shot in the eighth.
Arizona starter Dan Haren missed out on a chance to win his 11th game when he gave up the four runs in the fifth.
Juan Gutierrez (3-2) picked up the victory by working a perfect seventh inning.
After Haren allowed nine base runners, Pittsburgh could not manage a hit against any of Arizona's four relievers.