1964 Earned Run Average Leaders Top 25 in the National League
Name	Earned Run Average	Team	Rank
Sandy Koufax	1.74 (1.7354)	Los Angeles Dodgers	1
Don Drysdale	2.18 (2.1846)	Los Angeles Dodgers	2
Chris Short	2.20 (2.2024)	Philadelphia Phillies	3
Juan Marichal	2.48 (2.4758)	San Francisco Giants	4
Jim Bunning	2.63 (2.6272)	Philadelphia Phillies	5
Jim O'Toole	2.66 (2.6591)	Cincinnati Reds	6
Jim Maloney	2.71 (2.7083)	Cincinnati Reds	7
Bob Veale	2.74 (2.7354)	Pittsburgh Pirates	8
Gaylord Perry	2.75 (2.7480)	San Francisco Giants	9
Bob Bruce	2.76 (2.7578)	Houston Colt .45s	10
Bob Gibson	3.01 (3.0070)	St. Louis Cardinals	11
Bob Purkey	3.04 (3.0358)	Cincinnati Reds	12
Ron Herbel	3.07 (3.0745)	San Francisco Giants	13
Larry Jackson	3.14 (3.1445)	Chicago Cubs	14
Bobby Bolin	3.25 (3.2462)	San Francisco Giants	15
Roger Craig	3.25 (3.2530)	St. Louis Cardinals	16
Turk Farrell	3.27 (3.2672)	Houston Colt .45s	17
Bob Friend	3.33 (3.3329)	Pittsburgh Pirates	18
Joey Jay	3.39 (3.3934)	Cincinnati Reds	19
Curt Simmons	3.43 (3.4303)	St. Louis Cardinals	20
Tony Cloninger	3.56 (3.5604)	Milwaukee Braves	21
Vern Law	3.61 (3.6094)	Pittsburgh Pirates	22
Galen Cisco	3.62 (3.6156)	New York Mets	23
Ken Johnson	3.63 (3.6330)	Houston Colt .45s	24
Bob Hendley	3.64 (3.6367)	San Francisco Giants	25
Name	Earned Run Average	Team	Rank

	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. 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 first player from the Angels franchise (they were the California Angels at the time) to wear the number twenty-five was Bob Perry.