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1880 MLB Earned Run Average by Team

Every team's total, added up from its players' lines. Earned runs allowed per nine innings

The Providence Grays led all of MLB in earned run average in 1880, with 1.64, 0.26 ahead of the Cleveland Blues. The average across 8 MLB teams is 2.39.

Led all of MLB in 1880 Providence Grays 87 games
1.64 Earned Run Average 0.26 clear of Cleveland Blues
# Team League G ERA
1 Providence Grays NL 87 1.64
2 Cleveland Blues NL 85 1.90
3 Chicago White Stockings NL 86 1.93
4 Worcester Ruby Legs NL 85 2.27
MLB average 2.39
5 Cincinnati Reds NL 83 2.44
6 Troy Trojans NL 83 2.74
7 Boston Red Caps NL 86 3.08
8 Buffalo Bisons NL 85 3.09

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.