Shohei Ohtani hit a leadoff homer and scored four times, Mookie Betts also went deep and drove in four runs, and the Los Angeles Dodgers routed the New York Mets 10-2 for a 3-1 lead in their lopsided National League Championship Series. Betts had a two-run homer and a two-run double among his four hits. Max Muncy extended his streak of reaching base safely to 12 plate appearances, a postseason record, and the Dodgers moved within one win of their 25th pennant — most in NL history. Game 5 is Friday at Citi Field, with Jack Flaherty expected to pitch for Los Angeles with an opportunity to put his hometown team in the World Series.