Generally, people like to use K/9 to compare pitchers’ strikeout rates, but Rich Lederer at Baseball Analysts instead looks at how many batters a pitcher strikes out per 100 pitches. In other words, it’s how efficient a pitcher is at striking out batters. Sort of. You have to get down to #45 to find your first Met, Jon Niese at 4.97K per 100 pitches.