Baseball records have been kept for more than a century. Some come from newspaper stories or even handwritten game sheets. Modern records come with crisp video evidence of hits made, home runs scored, and bases stolen. Some of these records have stood for decades, with current players still struggling to break them. Changes to rules and common practices in the sport over time have made some longstanding records even harder to break. Part of the Unbreakable Sports Records? series, Baseball Records That Will Be Tough to Beat tells the stories of five record holders whose personal bests might just stand the test of time.