For his second start in the majors, Ty Blach's task was pretty simple: Beat Clayton Kershaw, boost San Francisco's playoff chances. The rookie left-hander outpitched Kershaw, and the Giants held onto their lead for the last NL wild-card spot going into the final day of the regular season, blanking the Los Angeles Dodgers 3-0 Saturday. The Giants stayed one game ahead of St. Louis for the second NL wild-card slot.