Stream of consciousness rationale: To answer the above question, the relevant sentence is: On-base plus slugging (OPS) is a sabermetric baseball statistic calculated as the sum of a player's on-base percentage and slugging average.
The question and answer pair are described below.
Q: On-base plus slugging (OPS) is a sabermetric baseball statistic calculated as the sum of a player's on-base percentage and slugging average. The ability of a player both to get on base and to hit for power, two important offensive skills, are represented.

Answer this question based on the passage: what does opie s stand for in baseball stats?
A: On - base plus slugging