On-base plus slugging plus runs batted in

Víctor Martínez led all of Major League Baseball in 2014 with an OPSBI of 1077, the lowest league-leading total since 1984.

On-base plus slugging plus runs batted in (OPSBI) is a baseball statistic calculated as the normalized sum of a player's on-base percentage and slugging percentage added to their runs batted in. Former Major League Baseball general manager, Jim Bowden, created this statistic. Hall of Fame outfielder, Babe Ruth, holds both the single-season and career OPSBI records.

Formula

The basic formula is

$OPSBI=((OBP+SLG)*1000)+RBI\,$

where OBP is on-base percentage and SLG is slugging average. These averages are defined as:

$OBP={\frac {H+BB+HBP}{AB+BB+SF+HBP}}$

and

$SLG={\frac {TB}{AB}}$

where:

• H = Hits
• BB = Base on balls
• HBP = Times hit by pitch
• AB = At bats
• SF = Sacrifice flies
• TB = Total bases

Rewriting the expression to account for the different denominators yields the final expression for OPSBI:

$OPSBI={\frac {AB*(H+BB+HBP)+TB*(AB+BB+SF+HBP)}{AB*(AB+BB+SF+HBP)}}*1000+RBI$

Leaders

The Top 10 single-season OPSBI performances in Major League Baseball history:

Rank	Year	Player	OPSBI
1st	1921	Babe Ruth	1529
2nd	2004	Barry Bonds	1522
3rd	1920	Babe Ruth	1519
4th	2001	Barry Bonds	1515
5th	2002	Barry Bonds	1491
6th	1923	Babe Ruth	1440
7th	1927	Babe Ruth	1422
8th	1927	Lou Gehrig	1414
9th	1941	Ted Williams	1408
10th	1926	Babe Ruth	1403

The Top 10 MLB players in lifetime OPSBI through the 2013 season are (active players in bold):

Rank	Player	OPSBI
1st	Babe Ruth	3381
2nd	Hank Aaron	3226
3rd	Lou Gehrig	3074
4th	Barry Bonds	3047
5th	Jimmie Foxx	2959
6th	Ted Williams	2955
7th	Stan Musial	2927
8th	Cap Anson	2914
9th	Alex Rodriguez	2911
10th	Ty Cobb	2882

See also

• On-base percentage
• Slugging percentage
• Runs batted in
• Sabermetrics