CHICAGO (CBS/AP) - Ryan Dempster struck out a season-high 11 and snapped a six-game Wrigley Field losing streak to help the Chicago Cubs beat the San Francisco Giants 11-4 Friday.
Dempster (2-4) allowed two runs and six hits in six innings and the Cubs ended San Francisco's six-game winning streak.
Reed Johnson went 3 for 5 and drove in four runs, three on a bases-loaded triple in the seventh. Darwin Barney was 3 for 5 with 3 RBIs and Starlin Castro also had three hits, and drove in two runs.
Giants left-hander Madison Bumgarner (0-6) gave up two earned runs on five hits through six innings, struck out six and walked two. He hasn't won since Sept. 30, 2010.
Cody Ross hit a two-run homer in the eighth that cut the margin to 8-4. But in the bottom half, Chicago added three more runs on Castro's double, Barney's single and Johnson's two-out blooper to left field.
Barney's RBI double off Jeremy Affeldt in the seventh kicked off a five-run outburst. Affeldt then hit Marlon Byrd with a pitch to load the bases before departing.
Jeff Baker singled off Guillermo Mota and Johnson followed with a two-out triple.
Aubrey Huff drove in the Giants' first two runs, on a single in the first inning and a double in the fifth.
In between the Cubs scored three runs in the bottom of the second. Koyie Hill had a sacrifice bunt, and then came home on Castro's single with two outs. Barney added a single.
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