2004 MLB Winning Percentage by Team

The St. Louis Cardinals led all of MLB in winning percentage in 2004, with .648, .024 ahead of the New York Yankees. The average across 30 MLB teams is .500.

Led all of MLB in 2004 St. Louis Cardinals 162 games

.648 Winning Percentage .024 clear of New York Yankees

#	Team	League	G	W-L%
1	St. Louis Cardinals	NL	162	.648
2	New York Yankees	AL	162	.624
3	Boston Red Sox	AL	162	.605
4	Atlanta Braves	NL	162	.593
5	Los Angeles Dodgers	NL	162	.574
6	Anaheim Angels	AL	162	.568
6	Houston Astros	NL	162	.568
6	Minnesota Twins	AL	162	.568
9	Oakland Athletics	AL	162	.562
9	San Francisco Giants	NL	162	.562
11	Chicago Cubs	NL	162	.549
11	Texas Rangers	AL	162	.549
13	San Diego Padres	NL	162	.537
14	Philadelphia Phillies	NL	162	.531
15	Chicago White Sox	AL	162	.512
15	Florida Marlins	NL	162	.512
	MLB average			.500
17	Cleveland Indians	AL	162	.494
18	Baltimore Orioles	AL	162	.482
19	Cincinnati Reds	NL	162	.469
20	Pittsburgh Pirates	NL	161	.447
21	Detroit Tigers	AL	162	.444
22	New York Mets	NL	162	.438
23	Tampa Bay Devil Rays	AL	161	.435
24	Colorado Rockies	NL	162	.420
25	Milwaukee Brewers	NL	161	.416
25	Toronto Blue Jays	AL	161	.416
27	Montreal Expos	NL	162	.414
28	Seattle Mariners	AL	162	.389
29	Kansas City Royals	AL	162	.358
30	Arizona Diamondbacks	NL	162	.315

A team's total is its players' numbers for the club added up, so a player traded mid-season counts for each team only what he did there. Rates such as ERA and batting average are worked out from the team's summed totals, not averaged across players.