who has the highest earned run average in the 90s
team most run diff, all-time, mlb, 1980s
team most run diff, all-time, mlb, 1970s
who has the highest earned run average in the 80s
team most run diff, all-time, mlb, 1960s
team most run diff, all-time, mlb, 1950s
team most run diff, all-time, mlb, 1940s
who has the highest earned run average in the 70s
team most run diff, all-time, mlb, 1930s
team most run diff, all-time, mlb, 1920s
team most run diff, all-time, mlb, 1910s
who has the highest earned run average in the 60s
team most run diff, all-time, mlb, 1900s
team most run diff, all-time, mlb, since 1998
who has the highest earned run average in the 50s
