10. Chief Bender

When Charles Albert Bender arrived in Philadelphia before the 1903 season, he brought to the American League one of the most remarkable strategic minds of the Deadball Era. Signed from semipro baseball at just 19, this young Ojibwe right-hander quickly secured a spot on a team already forming a dominant franchise. Under the careful guidance of Connie Mack, Bender quickly gained a reputation as a calm and thoughtful pitcher, using a sweeping breaking ball often recognized as the first slider.

His early seasons established a standard of reliable and precise performance. As a teenager in 1903, he pitched 270 innings, recording 17 wins while maintaining an impressively low walk rate for his age. By 1905, he played a crucial role in the Athletics' pursuit of the pennant, ending the season with a dominant shutout against the New York Giants in the World Series, the only win Philadelphia managed in that Fall Classic.

Over the next five seasons, his performance steadily improved. Instead of just relying on fast pitches, Bender skillfully broke down lineups, gradually lowering his ERA in each season until reaching an exceptional high point. This development peaked in a legendary 1910 season, when he led the league with a remarkable .821 winning percentage, recording a 23-5 record and an impressive 1.58 ERA. In May, he threw a no-hitter against Cleveland, cementing his reputation as the top money pitcher in the game.

As the 1910s began, Bender established himself as the key pitcher in baseball’s first major twentieth-century dynasty. Although Connie Mack often rotated other starters during regular play, he made it clear that Bender would pitch in crucial moments. He led the Athletics to victory in three World Series—1910, 1911, and 1913. His ability to perform under pressure in October became legendary; he consistently completed what he started, once tying the record by pitching three complete games in a single Fall Classic.

The final chapter in Philadelphia saw one more dominant regular-season run in 1914, where he went 17-3 to help secure another pennant. However, a surprising defeat in the World Series, coupled with the financial arrival of the Federal League, prompted Mack to dismantle the roster, ending Bender's twelve-year run in the City of Brotherly Love with a 193-102 record in an A's uniform.

Bender was chosen for the Baseball Hall of Fame in 1953, but he sadly passed away in between when he was elected and the induction ceremony.  Bender would later be named to the Philadelphia Baseball Wall of Fame in 1991, and the Athletics Hall of Fame in 2021.