On-base plus slugging
In baseball statistics, On-base plus slugging (denoted by OPS) is defined by the sum of On base percentage and Slugging percentage.
This statistic is very popular in measuring the offensive worth of a player since it:
- Is easy to calculate
- Has a strong positive correlation, at the team level, with runs per game.
The denominators for OBP and SLG are different, so to add the two to calculate OPS we put the fractions over a common denominator:
<math> OBP = \frac{H+BB+HBP}{AB+BB+SF+HBP};SLG = \frac{TB}{AB}<math>
<math> OPS = OBP + SLG = \frac{AB(H+BB+HBP)+TB(AB+BB+SF+HBP)}{AB(AB+BB+SF+HBP)}<math>
