O’Day began his career as an umpire in the National League in 1895. During his tenure as an umpire, he was known for his fairness and ability to make quick decisions. He was a consistent presence in the league, officiating over 2,500 games over the course of his career.
In addition to his work as an umpire, O'Day also managed the Chicago Cubs for three seasons. During his time as the Cubs’ manager, the team won the National League Pennant in 1910, and finished in second place the following year. O’Day also had a brief stint as the manager of the Cincinnati Reds in 1914.
O’Day was inducted into the Baseball Hall of Fame in 1953, and is remembered as one of the most respected umpires and managers in the history of the game. His illustrious career was marked by numerous accomplishments, including officiating the first perfect game in modern baseball history, and managing the Chicago Cubs to a National League Pennant. His legacy as one of the most influential figures in baseball continues to this day.
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