The Giants lost their third straight game and have scored only three runs in their last 28 innings. It was the first time in nine games the Giants weren't involved in a one-run decision.
San Diego has won seven of 10.
Stults (1-2) kept the already struggling Giants off balance and largely off the base paths, allowing one run and three hits in six innings, with two strikeouts and no walks.
Tim Hudson (2-1) allowed two runs and eight hits in seven innings, struck out four and walked none.