was the first in Washington Nationals history. In the best-of-seven National League Championship Series, the Nationals swept the St. Louis Cardinals (who had defeated the Braves in the Division Series round) in four games to secure the first pennant in franchise history (including their time as the Montreal Expos from 1969 to 2004). It was the first World Series appearance for a team from Washington D.C. since , including 33 seasons that the city did not host an MLB team (1972–2004). Houston Astros In the prior two seasons, the Astros had won the 2017 World Series, the franchise's first World Series championship, and lost the 2018 American League Championship Series to the Boston Red Sox. The Astros finished the 2019 regular season atop the American League West—their third consecutive division championship—with a 107–55 () win–loss record. Their 107 wins were a franchise record, and the most in MLB for the season. The Astros entered the postseason as the overall #1 seed. Their first opponent in the postseason was determined by the American League Wild Card Game, which saw the Tampa Bay Rays defeat the Oakland Athletics. In the best-of-five American League Division Series, the top-seeded Astros defeated fifth-seeded Tampa Bay in five games, with each game of the series being won by the home team. The Astros' opponent in the best-of-seven American League Championship Series (ALCS) was the second-seeded New York Yankees, who had defeated the Minnesota Twins in their playoff series, three games to none. In the ALCS, the Astros and Yankee split the first two games, followed by the Astros winning two-of-three games played at Yankee Stadium. Game 6 in Houston was then won by the Astros, giving them the series win, four games to two. The Astros' ALCS victory advanced them to their third overall World Series appearance (2 in the American League & one in the National League), and second in three years. Summary Game summaries The below game summaries include a line score of each game, showing the runs scored by each team during each inning. Various baseball terms appearing in the summaries can be found in the glossary of baseball. The performance of pitchers in a game is often summarized by wording such as "two runs on three hits while striking out four batters", indicating how many runs and hits the pitcher allowed (the fewer, the better) and how many opposing batters the pitcher