Jeff Samardzija struck out a season-high 10 for his first win since last August, leading the Chicago Cubs past the San Francisco Giants 8-4 on Monday.Chicago Cubs' Emilio Bonifacio drives in a run with a triple against the San Francisco Giants during the fifth inning of a baseball game on Monday, May 26, 2014, in San Francisco.San Francisco Giants startin pitcher Yusmeiro Petit throws to the Chicago Cubs during the first inning of a baseball game on Monday, May 26, 2014, in San Francisco.Chicago Cubs starting pitcher Jeff Samardzija throws to the San Francisco Giants during the first inning of a baseball game on Monday, May 26, 2014, in San Francisco.San Francisco Giants' Pablo Sandoval drives in a run with a single against the Chicago Cubs during the first inning of a baseball game on Monday, May 26, 2014, in San Francisco.