The 2015 National League Championship Series was a best-of-seven playoff contested between the Chicago Cubs and the New York Mets for the National League (NL) pennant and the right to play in the 2015 World Series. The Mets swept the Cubs four games to none for their fifth National League Pennant in franchise history. The series was the 46th in league history with TBS airing all games in the United States. Game 1 was played on October 17.
This was the first NLCS since 2007 not to feature the Philadelphia Phillies, San Francisco Giants, or St. Louis Cardinals, the first postseason meeting between the Mets and Cubs, and the first NLCS in which the losing team never had a lead during a game. It was also the first since 2007 to end in a sweep, and the third best-of-seven NLCS to do so (the other being in 1995).
The Chicago Cubs finished the 2015 season with a 97–65 record, the third best record in the majors. With new manager Joe Maddon and the great play of pitcher Jake Arrieta and hitters Anthony Rizzo and Kris Bryant, the Cubs experienced their best season since 2008 when they also won 97 games. Despite their record, the Cubs only received the second Wild Card bid and had to travel to play the Pittsburgh Pirates in the 2015 National League Wild Card Game, where they won 4–0. They then advanced to the NLCS by defeating the St. Louis Cardinals 3 games to 1 in the NLDS. This was the first time the Cubs won a postseason series at Wrigley Field. It is their first appearance in the NLCS since 2003 and their fourth appearance overall. It also snapped the Cardinals' NLCS appearance streak at four; they had appeared in every NLCS from 2011 to 2014, winning in 2011 and 2013.
The New York Mets made their first playoff appearance since 2006, thanks to their starting pitchers Matt Harvey, Jacob deGrom and Noah Syndergaard as well the late season acquisition of hitter Yoenis Céspedes. The Mets finished 2015 with a 90–72 record, clinching the National League East on September 26 with a 10–2 victory over the Cincinnati Reds. They defeated the Los Angeles Dodgers in five games in the 2015 NLDS, their first playoff series played at Citi Field since its opening in 2009. This is the second straight NLDS in which the Mets clinched in L.A., advancing to the NLCS for the first time since 2006 and their eighth appearance overall.
During the 2015 regular season, the Cubs won all seven games against the Mets.