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Glossary of Fielding Statistics
Hitting | Pitching
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Plus/Minus System
Plays made above average
FA+-
Fielding % above the
League Average
Fielding Runs (FR)
Fielding Win Shares (FWS)
This
method of evaluating fielding, which was developed by Bill James,
adjusts traditional fielding statistics for primarily:
1) The "false normalization" that makes fielding statistics for players
on poor teams appear to be better than they
really are.
2) The groundball/flyball and strikeout tendencies of a pitching staff
3) Statistics that do not gauge defensive ability (i.e. catcher putouts
that result from strikeouts, or any third basemen
putouts).
Catchers
Only:
A/G
Assists per Game Caught
PB/G
Passed Balls per Game
Caught
Outfielders Only:
A-E
Assists minus errors
This simple statistic allows us to rate the effectiveness of someone who
has a strong, yet wild arm against a player who
makes solid and accurate throws. It also compares players from
most eras consistently, as errors and assists among outfielders have
generally declined over time.
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