SAN FRANCISCO, July 3 (UPI) -- Mike Fontenot put Chicago in front with an eighth-inning homer Wednesday and the Cubs survived a ninth-inning scare to defeat San Francisco 6-5.
Chicago won its second straight after losing the first four games of its current road swing.
Chicago quickly regained the lead, however, on Fontenot's fifth homer of the year, which came on a 3-1 pitch from Tyler Walker (3-4).
Marmol (2-3) got the win despite surrendering the lead and Kerry Wood earned a shaky save, his 21st.
After Wood retired the first two Giants in the ninth on five pitches, pincher-hitter Jose Castillo tripled. But Wood needed only three pitches to strike out Fred Lewis and end the game.