Underwhelming title? Rangers starter Yu Darvish’s strikeout rate will overwhelm you. The 26-year-old right-hander struck out 14 Red Sox over seven innings today, lowering his ERA to 2.56. The 14 K’s bring his total to 72 on the season in 45 and one-third innings, a rate of 14.3 per nine innings. On a batters-faced basis, his strikeout rate is 40 percent.
To put that in perspective, the only pitchers to have a strikeout rate of 40 percent or better last year were relievers: Craig Kimbrel (50%) and Aroldis Chapman (44%). The leader among starters was Max Scherzer at 29 percent, followed by Darvish himself at 27 percent.
In baseball history, only two starters have qualified for the ERA title and finished with a K/9 above 13: Randy Johnson in 2001 (13.4 in 249.2 innings) and Pedro Martinez in 1999 (13.2 in 213.1 innings). Today marked the second time this season Darvish had struck out 14 — he opened up the season with a 14-K performance (and 8.2 innings of no-hit ball) against the Astros. The last starter to have two 14-strikeout performances in one season was Roy Halladay in 2011, on April 24 against the Padres and on August 16 against the Diamondbacks. It was also Darvish’s fourth double-digit strikeout game in seven starts.
In terms of overall swing-and-miss rate, Darvish at 41 percent vastly outpaces second-place Ryan Dempster at 34 percent. Darvish led all pitchers last year at 29 percent, followed by Scherzer at 28 percent.
While it is unlikely Darvish will keep up this frenetic pace of missing bats, it is still something to marvel at, as we see it so rarely even as strikeouts continue to rise to historic levels.