1986 MLB Losses by Team

The Pittsburgh Pirates led all of MLB in losses in 1986, with 98, 3 ahead of the Seattle Mariners. The average across 26 MLB teams is 80.8.

Led all of MLB in 1986 Pittsburgh Pirates 162 games

98 Losses 3 clear of Seattle Mariners

#	Team	League	G	L
1	Pittsburgh Pirates	NL	162	98
2	Seattle Mariners	AL	162	95
3	Minnesota Twins	AL	162	91
4	Chicago Cubs	NL	160	90
4	Chicago White Sox	AL	162	90
6	Atlanta Braves	NL	161	89
6	Baltimore Orioles	AL	162	89
6	Los Angeles Dodgers	NL	162	89
9	San Diego Padres	NL	162	88
10	Kansas City Royals	AL	162	86
10	Oakland Athletics	AL	162	86
12	Milwaukee Brewers	AL	161	84
13	Montreal Expos	NL	161	83
14	St. Louis Cardinals	NL	161	82
	MLB average			80.8
15	San Francisco Giants	NL	162	79
16	Cleveland Indians	AL	163	78
17	Cincinnati Reds	NL	162	76
17	Toronto Blue Jays	AL	163	76
19	Detroit Tigers	AL	162	75
19	Philadelphia Phillies	NL	161	75
19	Texas Rangers	AL	162	75
22	New York Yankees	AL	162	72
23	California Angels	AL	162	70
24	Boston Red Sox	AL	161	66
24	Houston Astros	NL	162	66
26	New York Mets	NL	162	54

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.