Jhoulys Chacin scattered five hits over seven sharp innings and Troy Tulowitzki broke out of a hitting funk with a solo homer, helping the Colorado Rockies to a 3-0 win over the Los Angeles Dodgers on Tuesday night. Chacin (1-0) struck out four in his season debut as the hard-throwing righty outdueled Clayton Kershaw (1-1), who lasted six innings and allowed three runs.