LOS ANGELES — Jack Flaherty went seven scoreless innings, Shohei Ohtani had two hits and scored twice, and the Los Angeles Dodgers rolled to a 9-0 victory over the visiting New York Mets in Game 1 of the National League Championship Series on Sunday.Daniel Hudson and Ben Casparius each pitched an inning for the Dodgers, who extended their scoreless streak to 33 consecutive innings to tie a postseason record. Los Angeles has not allowed a run since the second inning of Game 3 in the NL Division Series against the San Diego Padres.Mookie Betts had a three-run double, Max Muncy had a two-run single and Freddie Freeman had two hits with an RBI while playing on a sprained right ankle as the Dodgers won their fifth consecutive game over the Mets going back to the regular season.Flaherty (1-1) gave up two hits with two walks and six strikeouts.Right-hander Kodai Senga (0-1) gave up three runs with four walks and lasted just 1 1/3 innings for the Mets, who lost an opener for the first time in three series this postseason.New York had just three hits, all singles.The Dodgers turned three consecutive walks in the first inning into two runs on Muncy’s single before taking advantage of Senga’s generosity again in the second inning. Gavin Lux walked to lead off the inning and scored on a single by Ohtani for a 3-0 lead.