You often see a hitter’s performance presented as their “slash line.” The first number is the batting average (AVG), the second number is on-base percentage (OBP) and the third number is slugging percentage (SLG). Slash line stats depict three distinct skills of the batter: hitting, on-base and power.
Here are three examples of career slash lines:
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Sean Casey: .322/.381/.392
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Johnny Bench: .267/.342/.476
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Adam Dunn: .237/.364/.490
Slash line data as presented is a vast improvement compared to simply using a hitter’s batting average for evaluation.