In 2019, Rendon batted .319/.412/.598 with 34 home runs, led the NL with 44 doubles for the second year in a row, and led the majors in RBIs (126). He had the best walks/strikeouts ratio in the NL (0.93), and made contact with the highest percentage of pitches he swung at (88.3%) of all NL batters. He also hit for a 1.003 OPS in the postseason to help lead the Nationals to their first World Series championship. He hit key home runs in Games 6 and 7 of the World Series and his 8 RBIs for the 2019 World Series were the most by a Nationals player.