Rookie Tyler Matzek struck out seven in seven innings to end a five-start losing streak, and the Colorado Rockies capitalized on San Francisco's mistakes to beat the Giants 3-2 on Monday night. The Rockies have won four straight games in San Francisco for the first time in club history, kicking off a stretch of 13 straight games against the NL West with an impressive victory. In his 14th major league start and first facing the Giants, Matzek (3-9) won for the first time since beating Pittsburgh on July 26 and recorded his first victory versus the division. Matzek outdueled Jake Peavy (2-4), who had won his previous two starts following three straight losses after being acquired in a trade from Boston on July 26.