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
• Correlates well (and positively!), on a team-by-team basis, with the number of wins a team achieves.

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

See also: Baseball statistics