Most hitters in the majors have a batting average between .200 and .350 (20-35% - hits/at-bats). A walk doesn't count as an at-bat, because that would lower your batting average. A walk raises your on-base%.
Right fielder Jay Buhner hitting for the cycle (1993).
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In the statistics, slugging percentage (SLG) means total bases/at-bats. For example, one double in four at-bats gives a .500 SLG. In 2016, the average SLG among all batters in the major leagues was .417.
