Matt Cain allowed just one earned run over seven innings but the Giants lost to the Rockies on Saturday. It was a positive showing for the Giants' right-hander, who struggled in his first two outings of the season. He struck out eight Colorado batters and surrendered just four hits, but the San Francisco offense gave him no support and he fell to 0-2 on the year. Cain will hope for better luck next time out in San Diego.