2013 MLB Losses by Team

The Houston Astros led all of MLB in losses in 2013, with 111, 11 ahead of the Miami Marlins. The average across 30 MLB teams is 81.0.

Led all of MLB in 2013 Houston Astros 162 games

111 Losses 11 clear of Miami Marlins

#	Team	League	G	L
1	Houston Astros	AL	162	111
2	Miami Marlins	NL	162	100
3	Chicago White Sox	AL	162	99
4	Chicago Cubs	NL	162	96
4	Minnesota Twins	AL	162	96
6	Seattle Mariners	AL	162	91
7	Philadelphia Phillies	NL	162	89
8	Colorado Rockies	NL	162	88
8	Milwaukee Brewers	NL	162	88
8	New York Mets	NL	162	88
8	Toronto Blue Jays	AL	162	88
12	San Diego Padres	NL	162	86
12	San Francisco Giants	NL	162	86
14	Los Angeles Angels of Anaheim	AL	162	84
	MLB average			81.0
15	Arizona Diamondbacks	NL	162	81
16	Baltimore Orioles	AL	162	77
16	New York Yankees	AL	162	77
18	Kansas City Royals	AL	162	76
18	Washington Nationals	NL	162	76
20	Cincinnati Reds	NL	162	72
20	Texas Rangers	AL	163	72
22	Tampa Bay Rays	AL	163	71
23	Cleveland Indians	AL	162	70
23	Los Angeles Dodgers	NL	162	70
25	Detroit Tigers	AL	162	69
26	Pittsburgh Pirates	NL	162	68
27	Atlanta Braves	NL	162	66
27	Oakland Athletics	AL	162	66
29	Boston Red Sox	AL	162	65
29	St. Louis Cardinals	NL	162	65

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.