In its 128-year history as a member of the National League, the Phillies have won twenty-one on-base percentage titles. Thirteen Phils have won the title, with five of them winning it more than once.
The first Phil to win the title was Hall of Famer Billy Hamilton, who did in it 1891 with a .453 percentage. He would win the second and third title to be won by a Phil player by winning it two years in a row, in 1893 and again in 1894, with on-base percentages of .490 and .521, respectively. Hall of Famer Ed Delahanty would become the second Phil to win the team’s fourth title, the fourth in five years, by winning it in 1895 with an on-base percentage of .500. The next Phil to win the title would be Roy Thomas, who would win the Phil’s fifth and sixth titles in 1902 and 1903, with marks of .414 and .453. The fourth Phil to win the title, the team’s seventh, would be Sherry Magee, who would win it in 1910, with a .445 percentage. The fifth Phil to win the title would be Gavvy Cravath, who won the title in 1915, the year that the Phils won their first National League title and in 1916, with marks of .393 and .379. It would be fourteen years before another Phil would win the team’s tenth title, which would be done by Lefty O’Doul in 1929 with a mark of .465. The seventh Phil to win the title would be Hall of Famer Chuck Klein, who would win the team’s eleventh title in 1933, the year that he won the batting triple crown, by posting an on-base percentage of .422. The eighth Phil to win the title would be Dolph Camilli, who would win the title in 1937 with a .446 percentage. The next Phil to secure the title would be Hall of Famer Richie Ashburn, who would win the title in 1954, 1955 and 1958, with percentages of .441, .449 and .440. The tenth Phil to become the on-base percentage leader would be Dick Allen, who would win the title in 1967 with a .404 mark. Pete Rose would become the eleventh Phil to win it, winning the team’s seventeenth title in 1979 with a .418 mark. The twelfth Phil to win the title would be Hall of Famer Mike Schmidt, who would it in the strike-shortened year of 1981, 1982 and 1983 with marks of .435, .403 and .399. The thirteenth, and at the moment last, Phil to win the title would be Lenny Dykstra, who won the team’s twenty-first title in 1990 with a .418 mark. No Phil has won the title since then.
Of the twenty-one titles won by the Phils, eleven of them, or almost half of them, have been won by Hall of Famers, with Billy Hamilton, Richie Ashburn and Mike Schmidt each winning three titles, while Ed Delahanty and Chick Klein would win the other two titles. Roy Thomas and Gavvy Cravath, other than the three Hall of Famers, have won more than one title, with each man winning two titles. The Phil with the highest on-base percentage when he won the title was Hamilton with his .521 mark in 1894, while the Phil with the lowest percentage was Cravath with his .379 mark in 1916. Phils have won the title four times in the 19th Century, seventeen times in the 20th, and so far have not won it in the 21st Century.
Who will be the next Phil to win the title? I have really no idea.