When Barry Zito pitches, the Giants win big games, medium-sized games, playoff games, home-opening games and any kind of game that has nine innings and No. 75 on the mound. That's the magic formula, and that's now the incredible flipped reality of Zito's hellish-then-charmed Giants career. What was down is up, what was cold is hot, and what's Zito is 100 percent unbeatable. The Giants defeated St. Louis 1-0 in the 2013 AT&T Park opener Friday, the 15th consecutive time the Giants have won a Zito start, dating to August.