slugging percentage
Baseball statistic: total bases divided by at-bats. A measure of a batter's power.
See also: 長打
His slugging percentage is the highest on the team.
Players with a high slugging percentage are often placed in the heart of the batting order.
出塁率 is on-base percentage, measuring how often a batter reaches base. 長打率 focuses only on power, not walks or hit-by-pitches.
Compound of 長打 (chōda, 'extra-base hit') and 率 (ritsu, 'rate' or 'percentage'). A straightforward modern technical term.