Adam Eaton threw one pitch too many in the eighth inning. With the score tied at 2-2, Eaton met up with Arizona slugger Richie Sexson with two on. Sexson took the first offering and hit it off the bulls-eye in center for a three run home run, his sixth homer of the season and a 5-2 lead.
It was the second three run home run Sexson has hit off Eaton this week.
Matt Mantei pitched the ninth to earn the save, his third of the season.
Sexson put the D-Backs on the board in the first with a single scoring Matt Kata who singled to open the game and moved to second on a ground out. An error by Brian Giles in right on a Steve Finley base hit brought Sexson around from first to score and put Arizona up 2-0. Giles misplayed the ball, looking up before the ball hit his mitt as it ran underneath his glove.
Mark Loretta hit a two run homer in the third inning to tie the score at 2-2. Following a Sean Burroughs walk, Loretta took the first pitch and belted it out of the park.
The win by Arizona evened up the season series at two apiece. Before the game, the Diamondbacks honored Pat Tillman, the former Arizona Cardinals player who left the NFL and joined the Army Rangers. He was killed in a firefight in Afghanistan on Thursday.
Arizona's Danny Bautista extended his hitting streak to 15 games, matching his career-best, with a one-out single in the seventh. It's the longest streak so far in the young season.