American League Batting Leaders
Wins Above Replacement--all
<strong>Wins Above Replacement</strong><br>A single number that presents the number of wins the player added<br>to the team above what a replacement player (think AAA or AAAA) would add.<br>Scale for a single-season: 8+ MVP Quality, 5+ All-Star Quality, 2+ Starter,<br>0-2 Reserve, < 0 Replacement Level <br>Developed by Sean Smith of BaseballProjection.com
WAR Position Players
<strong>Wins Above Replacement for position players</strong><br>A single number that presents the number of wins the player added<br>to the team above what a replacement player (think AAA or AAAA) would add.<br>Scale: 8+ MVP Quality, 5+ All-Star Quality, 2+ Starter,<br>0-2 Reserve, < 0 Replacement Level <br> Developed by Sean Smith of BaseballProjection.com
Offensive WAR
<strong>Offensive Wins Above Replacement (everything but Fielding)</strong><br>The same statistic as Wins Above Replacement for Position<br>Players (WAR), but with the fielding value excluded.<br>oWAR + dWAR does not equal WAR.<br>Adding would count positions twice.<br>Contains the factor for batting stats, baserunning, a positional adjustment, and the replacement player adjustment.<br> Factors developed by Sean Smith of BaseballProjection.com
Defensive WAR
<strong>Defensive Wins Above Replacement for position players</strong><br>A defensive measure of wins above replacement, but given<br>only the defensive stats of the player and his position adjustment. For this calculation, we use a<br>replacement level on defense is the league average.<br>Based on Baseball Info Solutions defensive runs saved from 2003 on<br>and total zone rating developed by Sean Smith of BaseballProjection.com previously
Batting Average
<strong>Hits/At Bats</strong><br>For recent years, leaders need 3.1 PA<br>per team game played<br>Bold indicates either highest BA using current stats<br>or awarded title at end of year.
On-Base%
<strong>(H + BB + HBP)/(At Bats + BB + HBP + SF)</strong><br>For recent years, leaders need 3.1 PA<br>per team game played
Slugging %
Total Bases/At Bats or
(1B + 2*2B + 3*3B + 4*HR)/AB
For recent years, leaders need 3.1 PA
per team game played
On-Base Plus Slugging
<strong>On-Base + Slugging Percentages </strong><br>For recent years, leaders need 3.1 PA<br>per team game played
Games Played
Games Played or Pitched
At Bats
At Bats
Plate Appearances
<strong>Plate Appearances</strong><br>When available, we use actual plate appearances from play-by-play game accounts<br>Otherwise estimated using AB + BB + HBP + SF + SH,<br>which excludes catcher interferences.<br>When <span class=tooltip>this color</span> click for a summary of each PA.
Runs Scored
Runs Scored/Allowed
Hits
Hits/Hits Allowed
Total Bases
<strong>Total Bases</strong><br>Singles + 2 x Doubles + 3 x Triples + 4 x Home Runs.
Doubles
Doubles Hit/Allowed
Triples
Triples Hit/Allowed
Home Runs
Home Runs Hit/Allowed
Runs Batted In
Runs Batted In
Bases on Balls
Bases on Balls/Walks
Strikeouts
Strikeouts
Stolen Bases
Stolen Bases
Singles
Singles Hit/Allowed
Adjusted OPS+
<strong>OPS+</strong><br>100*[OBP/lg OBP + SLG/lg SLG - 1]<br>Adjusted to the player’s ballpark(s)
Runs Created
<strong>Runs Created</strong><br>A set of formulas developed by Bill James and others<br>that estimates a player’s total contributions<br>to a team’s runs total.<br>This is computed with the "technical" formula when possible.<br>If SB or CS data is missing, the "basic" formula is used.<br>If HBP, IBB, SH, SF, or GIDP data is missing, the "stolen base" version of the formula is used. <br>Team Runs Created is the sum of player Runs Created.
Adj. Batting Runs
<strong>Adjusted Batting Runs</strong><br>A set of formulas developed by Gary Gillette, Pete Palmer and others<br>that estimates a player’s total contributions<br>to a team’s runs total via linear weights.<br>0.0 is an avg performance, <0 is worse than avg and >0 is better than avg
Adj. Batting Wins
<strong>Adjusted Batting Wins</strong><br>A set of formulas developed by Gary Gillette, Pete Palmer and others<br>that estimates a player’s total contributions<br>to a team’s wins with his bat.<br>0.0 is an avg performance, <0 is worse than avg and >0 is better than avg
Extra Base Hits
<strong>Extra Base Hits</strong><br>Doubles + Triples + Home Runs
Times On Base
<strong>Times on Base</strong><br>Hits + Bases on Balls + Hit By Pitch<br>Does not include Reached on Error or Catcher Interference.
Offensive Win %
<strong>Offensive Winning Percentage</strong><br>The percentage of games a team with nine of this player<br>batting would win. Assumes average pitching and defense.<br>This uses the Pythagorean win pct formula with the player's RC/G for runs scored and the league's R/9 as runs allowed.
Hit By Pitch
Times Hit by a Pitch.
Sacrifice Hits
Sacrifice Hits (Sacrifice Bunts)
Sacrifice Flies
Sacrifice Flies
First tracked in 1954.
Intentional Bases on Balls
<strong>Intentional Bases on Balls</strong><br>First tracked in 1955.
Double Plays Grounded Into
<strong>Double Plays Grounded Into</strong><br>Only includes standard 6-4-3, 4-3, etc. double plays.<br>First tracked in 1933.<br>For gamelogs only in seasons we have play-by-play, we include triple plays as well.<br>All official seasonal totals do not include GITP's.
Caught Stealing
Caught Stealing
SB %
Stolen Base Percentage
SB / (SB + CS)
Power-Speed #
<strong>Power/Speed Number</strong><br>2 x (Home Runs x Stolen Bases)/(Stolen Bases + Home Runs)<br>The harmonic mean of HR and SB.<br>To do well you need a lot of both.<br>Developed by Bill James.
AB per SO
<strong>At Bats Per Strikeout</strong><br>For career marks this only includes AB’s for seasons where SO’s were tracked.
AB per HR
<strong>At Bats Per Home Run</strong>
Outs Made
<strong>Outs Made</strong><br>(At Bats - Hits) + Double Plays Grounded Into <br>+ Sac. Flies + Sac. Hits + Caught Stealing.
Base-Out Runs Added (RE24)
<strong>Base-Out Runs Added</strong><br>Given the bases occupied/out situation, how many runs did the batter<br> or baserunner add in the resulting play.<br>Compared to average, so 0 is average, and above 0 is better than average
Win Probability Added (WPA)
<strong>Win Probability Added for Offensive Player</strong><br>Given average teams, this is the change in probability<br>caused by this batter during the game.<br>See <a href='https://www.baseball-reference.com/about/wpa.shtml'>Win Expectancy explainer</a> for details.
Situ. Wins Added (WPA/LI)
<strong>Situational Wins (WPA/LI)</strong><br>It is the sum of WPA divided by the leverage index for each play.<br>WPA depends greatly on the context of the at bats.<br>This stat does not.
Championship WPA (cWPA)
<strong>Championship Win Probability Added for Offensive Player</strong><br>Given average teams, this is the change in probability of winning the World Series, displayed in percentage points.<br>See <a href='https://www.baseball-reference.com/about/wpa.shtml'>Win Expectancy explainer</a> for details.
Base-Out Wins Added (REW)
<strong>Base-Out Wins Added (REW)</strong><br>This is the number of wins above average the player was worth by their performance measured by the 24 <br>base-out situations across every play in the game.
rOBA
rOBA
A measure of a player's offensive contributions, weighted in proportion to each event's actual run value
Rbat+
Rbat+
Batting runs as computed for WAR, but indexed to the environment the player played in, where 100 is league average.
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