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 relatively easy to calculate
• Has a very strong positive correlation -- at the team level -- with runs per game.

Originally solely the province of statisticians, the stat is lately finding acceptance in mainstream baseball coverage and analysis.

However, the math involved in calculating OPS is inexecutable. In order to add fractions algebraically, the denominator of each fraction involved must be common. The denominators for OBP and SLG are different:

See also: Baseball statistics