1964 On Base Percentage Leaders Top 25 in the American League
Name	On Base Percentage	Team	Rank
Mickey Mantle	.423 (.42328)	New York Yankees	1
Bob Allison	.404 (.40404)	Minnesota Twins	2
Boog Powell	.399 (.39881)	Baltimore Orioles	3
Floyd Robinson	.388 (.38769)	Chicago White Sox	4
Al Kaline	.383 (.38284)	Detroit Tigers	5
Norm Siebern	.379 (.37943)	Baltimore Orioles	6
Wayne Causey	.377 (.37696)	Kansas City Athletics	7
Harmon Killebrew	.377 (.37683)	Minnesota Twins	8
Carl Yastrzemski	.374 (.37364)	Boston Red Sox	9
Eddie Bressoud	.372 (.37227)	Boston Red Sox	10
Jim Gentile	.372 (.37218)	Kansas City Athletics	11
Elston Howard	.371 (.37068)	New York Yankees	12
Jim Fregosi	.369 (.36923)	Los Angeles Angels	13
Brooks Robinson	.368 (.36780)	Baltimore Orioles	14
Rocky Colavito	.366 (.36618)	Kansas City Athletics	15
Roger Maris	.364 (.36364)	New York Yankees	16
Tony Oliva	.359 (.35944)	Minnesota Twins	17
Norm Cash	.351 (.35063)	Detroit Tigers	18
Bill Freehan	.350 (.35026)	Detroit Tigers	19
Pete Ward	.348 (.34768)	Chicago White Sox	20
Ron Hansen	.347 (.34697)	Chicago White Sox	21
Don Lock	.346 (.34615)	Washington Senators	22
Chuck Hinton	.346 (.34609)	Washington Senators	23
Tom Tresh	.342 (.34198)	New York Yankees	24
Jimmie Hall	.338 (.33750)	Minnesota Twins	25
Name	On Base Percentage	Team	Rank

	Did you know that more than forty players have worn the number twenty-five for the Boston Red Sox — including Jack Clark, Denny Galehouse, Dizzy Trout and Tony Conigliaro. 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). The most recognizable Detroit Tiger to wear the number twenty-five was probably Norm Cash (who wore it from 1960 through 1974), but did you know that Hall of Famer Larry Doby also wore it during his single season with Detroit?