1939 Winning Percentage Leaders Top 25 in the National League
Name	Winning Percentage	Team	Rank
Paul Derringer	.781 (.78125)	Cincinnati Reds	1
Bob Bowman	.722 (.72222)	St. Louis Cardinals	2
Junior Thompson	.722 (.72222)	Cincinnati Reds
Bucky Walters	.711 (.71053)	Cincinnati Reds	4
Bill McGee	.706 (.70588)	St. Louis Cardinals	5
Mort Cooper	.667 (.66667)	St. Louis Cardinals	6
Larry French	.652 (.65217)	Chicago Cubs	7
Lon Warneke	.650 (.65000)	St. Louis Cardinals	8
Harry Gumbert	.621 (.62069)	New York Giants	9
Luke Hamlin	.606 (.60606)	Brooklyn Dodgers	10
Hugh Casey	.600 (.60000)	Brooklyn Dodgers	11
Curt Davis	.579 (.57895)	St. Louis Cardinals	12
Hal Schumacher	.565 (.56522)	New York Giants	13
Lee Grissom	.563 (.56250)	Cincinnati Reds	14
Tot Pressnell	.563 (.56250)	Brooklyn Dodgers
Bill Lee	.559 (.55882)	Chicago Cubs	16
Carl Hubbell	.550 (.55000)	New York Giants	17
Claude Passeau	.536 (.53571)	Philadelphia Phillies	18
		Chicago Cubs
Bill Posedel	.536 (.53571)	Boston Bees
Vito Tamulis	.529 (.52941)	Brooklyn Dodgers	20
Rip Sewell	.526 (.52632)	Pittsburgh Pirates	21
Whitey Moore	.520 (.52000)	Cincinnati Reds	22
Charlie Root	.500 (.50000)	Chicago Cubs	23
Bill Lohrman	.480 (.48000)	New York Giants	24
Bob Klinger	.452 (.45161)	Pittsburgh Pirates	25
Name	Winning 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). The first player from the Angels franchise (they were the California Angels at the time) to wear the number twenty-five was Bob Perry. 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.