On-base plus slugging (OPS) is a sabermetric baseball statistic calculated as the sum of a player's on-base percentage and slugging average.

Equation :

The basic equation is

OPS = OBP + SLG \,

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

SLG = \frac{TB} {AB}

and

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

where:

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


OPS Scale :

Category Classification OPS Range
A Great . 9000 and Higher
B Very Good . 8333 to .8999
C Above Average 7667 to .8333
D Average .7000 to .7666
E Below Average .6334 to .6999
F Poor .5667 to .6333
G Atrocious . 5666 and Lower