STARTERS: Very early command sub-indicator surgers, 2021

It's still way too early to put significant stock into early-season skills, especially aggregate measures like strikeouts and walks. But looking into the components that drive them can be a helpful early-season exercise, since they represent larger sample sizes.

First, these SP have posted a big increase in their swinging strike rate from 2020 to 2021:

  • Swinging Strike Rate (SwK%) - 2021 YTD vs. 2020*
    
    Name                 League  SwK% '21  SwK% '20  Diff
    ===================  ======  ========  ========  =====
    May, Dustin              NL     14.1%      7.8%  +6.3%
    Javier, Cristian         AL     12.8%      8.1%  +4.7%
    Burnes, Corbin           NL     19.4%     14.8%  +4.6%
    Alcantara, Sandy         NL     14.0%     10.4%  +3.6%
    Walker,...

Almost!

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