1998 MLB Slugging Percentage by Team

The Seattle Mariners led all of MLB in slugging percentage in 1998, with .468, .005 ahead of the Boston Red Sox. The average across 30 MLB teams is .420.

Led all of MLB in 1998 Seattle Mariners 161 games

.468 Slugging Percentage .005 clear of Boston Red Sox

#	Team	League	G	SLG
1	Seattle Mariners	AL	161	.468
2	Boston Red Sox	AL	162	.463
3	Texas Rangers	AL	162	.462
4	Colorado Rockies	NL	162	.461
5	New York Yankees	AL	162	.460
6	Atlanta Braves	NL	162	.453
7	Cleveland Indians	AL	162	.448
8	Toronto Blue Jays	AL	163	.448
9	Baltimore Orioles	AL	162	.447
10	Chicago White Sox	AL	163	.444
11	St. Louis Cardinals	NL	163	.441
12	Houston Astros	NL	162	.436
13	Chicago Cubs	NL	163	.433
14	San Francisco Giants	NL	163	.421
	MLB average			.420
15	Anaheim Angels	AL	162	.416
16	Detroit Tigers	AL	162	.415
17	San Diego Padres	NL	162	.409
18	Cincinnati Reds	NL	162	.402
19	Kansas City Royals	AL	161	.399
20	Oakland Athletics	AL	162	.397
21	Milwaukee Brewers	NL	162	.396
22	Philadelphia Phillies	NL	162	.395
23	New York Mets	NL	162	.394
24	Montreal Expos	NL	162	.394
25	Arizona Diamondbacks	NL	162	.393
26	Minnesota Twins	AL	162	.389
27	Los Angeles Dodgers	NL	162	.387
28	Tampa Bay Devil Rays	AL	162	.385
29	Pittsburgh Pirates	NL	163	.375
30	Florida Marlins	NL	162	.373

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.