National League pennant, finishing 2½ games behind the Chicago White Stockings. 1887 season Thompson had his breakout season in 1887 when he won the National League batting crown with .372 batting average, and he set a major league record with 166 RBIs. Thompson also led the league in hits (203), triples (23), slugging percentage (.565), total bases (308), and at bats (545). On May 7, 1887, Thompson became the first player in major league history to hit two triples with the bases loaded in the same game. The 1887 Detroit Wolverines featured four future Hall of Fame inductees (Thompson, Dan Brouthers, Deacon White, and Ned Hanlon) and won the National League pennant with a 79-45 record. The Wolverines then went on to defeat the St. Louis Browns of the American Association in a 15-game World Series challenge. Thompson played in all 15 games of the World Series and led all hitters with a .362 average, two home runs, seven RBIs and a .621 slugging percentage. 1888 season During the 1888 season, Thompson was sidelined with a sore arm during most of the season and appeared in only 56 games. His batting average declined by 90 points to .282, and the fortunes of the entire 1888 Detroit team followed suit. The team finished in fifth place with a 68-63 record. With high salaries owed to the team's star players, and gate receipts declining markedly, the team folded in October 1888 season with the players being sold to other teams. Philadelphia Phillies 1889–1892 On October 16, 1888, Thompson was purchased from the Wolverines by the Philadelphia Quakers (known as the Philadelphia Phillies beginning in 1890), for $5,000 cash (equal to $ today). In his first season with Philadelphia, Thompson hit .296 and led the National League with a career-high 20 home runs. He also became the first major league player to reach 20 home runs and 20 stolen bases (Thompson stole 24 bases) in the same season. Thompson improved his batting average to .313 in 1890 and led the league in both hits (172) and doubles (41). Thompson's batting average dipped slightly below .300 in 1891 (.294) but bounced back in 1892 to .305. In each of his first four seasons with the Phillies, Thompson finished among the league leaders in total bases and RBIs. He ranked third in total bases in 1889 (262), 1890 (243), and 1893 (263), second in RBIs