Evaluating the historical record books of the franchise reveals that the St. Louis Cardinals' lowest single-season win-loss percentage occurred during their early formative years at the turn of the 20th century. Specifically, the 1903 Cardinals squad struggled through a difficult campaign, finishing with a 43-94 record. Across more than a century of professional baseball, the organization has rarely endured such bottom-tier campaigns, traditionally maintaining a proud standard of competitiveness.