The 1985 National League Championship Series was played between the St. Louis Cardinals and Los Angeles Dodgers from October 9–16. It was the 17th NLCS and the first played under the new best-of-seven format. In previous years, the NLCS had been settled by a best-of-five format. This series is best known for Ozzie Smith's dramatic walk-off home run in Game 5. This is the second consecutive NLCS where a team overcame a 2–0 series deficit to win the series after the Padres did so in the best-of-five 1984 NLCS.