Chatwood, Arenado key Rockies' 4-3 win over Cubs

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DENVER (AP) -- Tyler Chatwood pitched six strong innings, Nolan Arenado hit a go-ahead single and the Colorado Rockies beat the Chicago Cubs 4-3 on Sunday to win the three-game series.

Chatwood (6-3), who went the distance last time out but was a tough-luck loser to Zack Greinke and the Los Angeles Dodgers 1-0, allowed seven hits and two runs, one earned.

Starlin Castro had four hits for Chicago, matching a career high, and Anthony Rizzo homered.

Edwin Jackson (6-11) settled down after a rough start to go seven innings, allowing five hits and four runs -- three earned. All the damage off him came with two outs.