Checking in on the Hitter’s Count
There is a lot to dissect when it comes to understanding the increase in strikeouts in baseball. Pitchers at the plate are striking out at a higher clip than ever, but even when filtering out their plate appearances, we’re still seeing yearly increases in strikeout rate. A continued increase in velocity and an improved ability to spot fastballs up in the zone was always going to boost strikeouts, but we are also coming to shifts in pitching approach that are directly attacking long-standing hitter’s comforts, making even hitter’s counts unpredictable.
Since I’ll be going through league-wide pitching trends, it’s useful to take a quick glance at pitch usage for the year.
Season | FB% | SL% | CT% | CB% | CH% | SF% | KN% | XX% |
---|---|---|---|---|---|---|---|---|
2015 | 57.7% | 14.7% | 5.6% | 9.1% | 10.8% | 1.4% | 0.6% | 0.5% |
2016 | 56.7% | 15.2% | 5.7% | 10.2% | 10.3% | 1.4% | 0.6% | 0.5% |
2017 | 55.6% | 16.3% | 5.5% | 10.6% | 10.3% | 1.3% | 0.4% | 0.5% |
2018 | 54.9% | 16.9% | 5.6% | 10.5% | 10.7% | 1.3% | 0.1% | 0.5% |
2019 | 52.5% | 18.3% | 5.9% | 10.6% | 11.1% | 1.4% | 0.0% | 0.4% |
2020 | 50.5% | 18.8% | 6.6% | 10.6% | 11.9% | 1.6% | 0.0% | 0.3% |
2021 | 50.9% | 19.8% | 6.4% | 9.9% | 11.7% | 1.4% | 0.0% | 0.4% |
Fastball usage is holding steady from last year at just over 50%. In addition, the increase in slider usage continues, taking a chunk out of curveball usage. Still, the takeaway is that we’re approaching true 50/50 fastball/non-fastball usage splits over all counts, and it’s probably here to stay. Read the rest of this entry »