1903 On Base Percentage Leaders Top 25 in the National League
Name	On Base Percentage	Team	Rank
Roy Thomas	.453 (.45315)	Philadelphia Phillies	1
Roger Bresnahan	.443 (.44304)	New York Giants	2
Frank Chance	.439 (.43856)	Chicago Cubs	3
Jimmy Sheckard	.423 (.42282)	Brooklyn Superbas	4
Mike Donlin	.420 (.41982)	Cincinnati Reds	5
Fred Tenney	.415 (.41524)	Boston Beaneaters	6
Fred Clarke	.414 (.41438)	Pittsburgh Pirates	7
Honus Wagner	.414 (.41385)	Pittsburgh Pirates	8
Joe Kelley	.402 (.40183)	Cincinnati Reds	9
Jimmy Slagle	.393 (.39331)	Chicago Cubs	10
Ginger Beaumont	.390 (.38973)	Pittsburgh Pirates	11
Harry Steinfeldt	.386 (.38618)	Cincinnati Reds	12
Jake Beckley	.384 (.38446)	Cincinnati Reds	13
Jack Doyle	.383 (.38250)	Brooklyn Superbas	14
Cy Seymour	.382 (.38215)	Cincinnati Reds	15
Sammy Strang	.376 (.37605)	Brooklyn Superbas	16
Bill Dahlen	.373 (.37276)	Brooklyn Superbas	17
Patsy Donovan	.370 (.36986)	St. Louis Cardinals	18
George Browne	.364 (.36364)	New York Giants	19
Claude Ritchey	.360 (.35993)	Pittsburgh Pirates	20
Sam Mertes	.360 (.35972)	New York Giants	21
Bill Keister	.352 (.35238)	Philadelphia Phillies	22
Davy Jones	.352 (.35209)	Chicago Cubs	23
Tommy Leach	.352 (.35155)	Pittsburgh Pirates	24
Charlie Babb	.350 (.35031)	New York Giants	25
Name	On Base Percentage	Team	Rank

	Jim Thome wore number twenty-five since he first came up with the Cleveland Indians making him the franchise record holder for that particular number (Mike Garcia is second). Future Hall of Famer Sammy Sosa is best known for wearing number twenty-one; however, when the young slugger played for the Chicago White Sox (1989-1991) he only wore number twenty-five. Jose Cruz of the Houston Astros had his number twenty-five retired on October 3, 1992, and became the first Major League player with that particular retired number.