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The Baseball Gauge Glossary

Graphs

Batting Career Graph

This uses a player's seven best offensive seasons, determined by offensive Win Shares. For players with less than seven career seasons, all of their seasons are included.

Rate stats are compared to the league averages (which are adjusted for the player's ballpark). For example, a player with a .290 batting average with a league average of .260 would be 11.5% better than league average. This number is then compared to the x players with the most plate appearances (where x = # of teams that year multiplied by 8), to find the percentile. This is done for all seven seasons, with the mean percentile (weighted on plate appearances) being the final value that is displayed on the graph.



For categories that contain three bars:
Left = versus left-handed pitchers
Center = versus all pitchers
Right = versus right-handed pitchers


Statistics Used

wOBA = Weighted On-Base Average
BA = Batting Average
OBP = On-Base Percentage
SLG = Slugging Percentage
ISO = Isolated Power
HR% = Home Run Percentage
BB% = Walk Percentage
K% = Strikeout Percentage
BB/K = Walks per Strikeout
SB = Stolen Bases per Opportunity

As a general rule of thumb, high percentiles are good and low percentiles are bad. A batter in the 98th percentile of strikeout percentage is better than 98% of the league at avoiding strikeouts.


Pitching Career Graph

This uses a player's seven best pitching seasons, determined by pitching Win Shares. For players with less than seven career seasons, all of their seasons are included.

Rate stats are compared to the league averages (which are adjusted for the player's ballpark). For example, a player with a 2.50 ERA with a league average of 3.50 would be 40% (3.50 / 2.50) better than league average. This number is then compared to the x players in the league with the most batters faced, to find the percentile. This is done for all seven seasons, with the mean percentile (weighted on batters faced) being the final value that is displayed on the graph.



For starting pitchers

1970-Pres, x = 5 * # of teams that year
1901-1969, x = 4 * # of teams that year
1890-1900, x = 3 * # of teams that year
1880-1889, x = 2.5 * # of teams that year
1871-1879, x = 1.5 * # of teams that year

For relief pitchers

1970-Pres, x = 4 * # of teams that year
1950-1969, x = 3 * # of teams that year
1871-1949, relief pitchers are included with starting pitchers


For categories that contain three bars:
Left = versus left-handed batters
Center = versus all batters
Right = versus right-handed batters


Statistics Used

wOBA = Weighted On-Base Average
R/9 = Runs allowed per 9 innings, with an adjustment for fielders
FIP = Fielding Independent Pitching
WHIP = Walks plus His per Innings Pitched
BA = Batting Average
HR% = Home Run percentage
BB% = Walk percentage
K% = Strikeout percentage
K/BB = Strikeouts per Walk
CG% = Complete Game percentage
BIP% = Balls in Play percentage
GB/FB = Groundouts per Flyout
Hold = Stolen Bases allowed per opportunity

As a general rule of thumb, high percentiles are good and low percentiles are bad. A pitcher in the 87th percentile of walks allowed percentage is better than 87% of the league at avoiding walks.


Fielding Career Graph

This uses a player's seven best fielding seasons, determined by fielding Win Shares. For players with less than seven career seasons, all of their seasons are included. To qualify for a percentile rating, a player needs at least 200 career games at that position

Using Defensive Regression Analysis, this graph looks at runs saved per 1000 innings and compares this rate to the x players at that position with the most innings (where x = # of teams that season), to find the percentile. This is done for all seven seasons, with the mean percentile (weighted on innings) being the final value that is displayed on the graph.



Team Profile Graph

This graph compares a team to all teams over an eleven year period. The categories are displayed in percentile rankings. The eleven year period spans from five seasons before to five seasons after the year in question. For example, the 1998 Yankees are compared to all teams from 1993-2003. Batting and Pitching statistics are park adjusted.



Statistics Used

Records

W% = Winning percentage
Pythag = Pythagorean winning percentage
BaseRuns = Base Runs winning percentage

Offense

R/9 = Runs scored per 9 innings
BA = Batting Average
OBP = On Base Percentage
SLG = Slugging Percentage
SB = Stolen Bases per opportunity

Pitching

RA/9 = Runs allowed per 9 innings
FIP = Fielding Independent Pitching
WHIP = Walks plus His per Innings Pitched
K% = Strikeout percentage
BB% = Walk percentage

Fielding

Field = Runs saved above average (Defensive Regression Analysis)

As a general rule of thumb, high percentiles are good and low percentiles are bad. A team whose pitchers are in the 87th percentile of walks allowed percentage is better than 87% of the league at avoiding walks.


Year Profile Graph

This graph compares each season to all seasons from 1876 to present. The categories are displayed in percentile rankings.



Statistics Used

R/9 = Runs scored per 9 innings
BA = Batting Average
OBP = On Base Percentage
SLG = Slugging Percentage
1B% = Singles Percentage
2B% = Doubles Percentage
3B% = Triples Percentage
HR% = Home Run Percentage
BB% = Walks Percentage
K% = Strikeout Percentage
SB/G = Stolen Bases per Game
CG% = Complete Game Percentage
BIP% = Balls in Play Percentage