2021 NL Losses by Team

The Arizona Diamondbacks led the NL in losses in 2021, with 110, 9 ahead of the Pittsburgh Pirates. The average across 15 NL teams is 82.1.

Led the NL in 2021 Arizona Diamondbacks 162 games

110 Losses 9 clear of Pittsburgh Pirates

#	Team	G	L
1	Arizona Diamondbacks	162	110
2	Pittsburgh Pirates	162	101
3	Washington Nationals	162	97
4	Miami Marlins	162	95
5	Chicago Cubs	162	91
6	Colorado Rockies	161	87
7	New York Mets	162	85
8	San Diego Padres	162	83
	NL average		82.1
9	Philadelphia Phillies	162	80
10	Cincinnati Reds	162	79
11	Atlanta Braves	161	73
12	St. Louis Cardinals	162	72
13	Milwaukee Brewers	162	67
14	Los Angeles Dodgers	162	56
15	San Francisco Giants	162	55

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.