stolen bases in the World Series. 1887 season In 1887, O'Neill rewrote the major league batting record book in just 124 games. That year, he won the American Association triple crown with a .435 batting average, 14 home runs and 123 RBIs. His batting average was originally recorded at .492, bases on balls having been counted as hits during that season. At the time of his death in 1915, his unadjusted .492 average was recorded as the highest in major league history. Subsequently, batting averages for the 1887 season were adjusted by removing bases on balls from the calculations. Even after that adjustment, O'Neill's 1887 batting average of .435 was a major league record until 1894 when Hugh Duffy established the current major league record by hitting .440. O'Neill's adjusted average for 1887 remains the second highest single season batting average in major league history. O'Neill's batting performance in 1887 also established new single season, major league records in at least seven other categories, including the highest on-base percentage (.490), slugging percentage (.691), most hits (225), runs scored (167), doubles (52), and extra base hits (84), and total bases (357). He also led all position players across Major League Baseball in 1887 with a 6.9 WAR rating. O'Neill's hitting in 1887 helped lead the Browns to their third consecutive American Association pennant with a 95-40 record. The Browns lost the 1887 World Series to the Detroit Wolverines, as O'Neill hit .200 in 65 at bats against Detroit's pitching in the World Series. 1888 season In 1888, O'Neill won his second consecutive American Association batting title by hitting .335. He also ranked among the league leaders in multiple hitting categories for the third consecutive year with a .390 on-base percentage (2nd), .446 slugging percentage (3rd), 177 hits (1st), 236 total bases (3rd), 98 RBIs (4th), and 225 times on base (3rd). With O'Neill again leading the club in hitting, the Browns won their fourth consecutive pennant in 1888 with a 92-43 record. The Browns lost the 1888 World Series to the New York Giants, though O'Neill compiled a .349 on-base percentage with eight runs, 11 RBIs and two home runs in his final World Series. 1889 season O'Neill had his fifth consecutive strong season as a batter in 1889. He appeared in 134 games in the outfield and compiled a .335 batting average, the second highest in the American Association. He