In 1911, Jackson's first full MLB season, he set a number of rookie records. His .408 batting average that season is a record that still stands and was good for second overall in the league behind Ty Cobb. His .468 on-base percentage led the league. The following season, Jackson batted .395 and led the American League in hits, triples, and total bases. On April 20, 1912, Jackson scored the first run in Tiger Stadium. The next year, he led the league with 197 hits and a .551 slugging percentage.