BeaneCounter

OOTP Baseball Statistics by ItsHellboy

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Run Environment Viewer

MLB league averages 1910-2025 — how the run environment shapes stats across eras

Baseline:

Ballpark:

Range:-

Batting:Pitching:

2010 (Baseline)Post-Testing Era

AVG: 0.261

OBP: 0.325

SLG: 0.403

OPS: 0.728

BABIP: 0.290

BB%: 8.3

HR/PA: 0.014

ERA: 4.08

WHIP: 1.340

K/9: 6.9

BB/9: 3.3

HR/9: 0.47

Showing: AVG — % deviation from 2010

1910

1920

1930

1940

1950

1960

1970

1980

1990

2000

2010

2020

1920Live-ball era begins — ban on spitball, new ball specs

1947Integration begins (Jackie Robinson)

1961-62AL & NL expansion — diluted pitching

1968Year of the Pitcher — historic low offense

1969Mound lowered from 15in to 10in

1973DH introduced in American League

1993Expansion (Marlins, Rockies) — offense boom

1994Strike-shortened season (no World Series)

2006Enhanced PED testing takes effect

2020COVID shortened 60-game season

2023Pitch clock, larger bases, shift ban

2025Continued K rate increase, offense dip

Source: Baseball Reference (baseball-reference.com)