Kuroda (3-5) struck out 11 and walked none.
Ardoin's squeeze bunt drove in Loney in the sixth with the Dodgers' third run. Loney had two hits and a walk for the Dodgers.
Sean Gallagher (3-2) started and took the loss for Chicago, giving up two runs on three hits with three walks and six strikeouts.
Dodgers' second baseman Jeff Kent was ejected for arguing balls and strikes after striking out to end the fifth inning.
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