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Thread: Groundballs and Strike Outs

  1. #1
    2009: Fail Ltlabner's Avatar
    Join Date
    May 2006

    Groundballs and Strike Outs

    A very long article on (you guessed it) groundballs and strike outs. Here.

    Some of this information is "well no kidding" but I thought there were some interesting tidbits.

    The basic premis of the piece is to group together pitchers with simular GB and K rates.

    Not surprisingly, pitchers with the highest strikeout and groundball rates had the lowest average ERA (3.94), while those with the lowest K and GB rates had the highest average ERA (5.01). In the hybrid categories, pitchers with above-average strikeout and below-average groundball rates (4.27) beat those with below-average K and above-average GB rates (4.53).

    1) The listing of pitchers with above average groundball and strike out rates contained no Reds pitchers. Carpenter, Sabathia, Zambrano, Liriano inhabit this list. Group average 3.94 ERA.

    That's an elite group of pitchers. The best of the bunch are those with strikeout rates above 20% and/or groundball rates over 50%.
    2) BELOW-AVG GB AND ABOVE-AVG K RATES - Group average 4.27 ERA

    Name                       GB%     K/BF
    Aaron Harang            38.69%  21.75%
    Bronson Arroyo          38.15%  18.55%
    Kyle Lohse              42.89%  17.11%
    This list also contained names like Zito, Verlander, Lilly, Cabrerra, Martiniz.

    There are a couple of dozen outstanding pitchers in this group, most notably those listed in the top half (or with K rates over 20%).
    NOTE: AH was in the top 1/2 of the list. BA and KL were in the lower 1/2 of the list.

    3) BELOW-AVG GB AND K RATES - Group average 5.01 ERA

    Name                       GB%     K/BF
    Victor Santos           43.64%  15.52%
    Eric Milton             30.80%  13.60%
    This list also contained names like Ortiz, Lieber, Blanton, Williams (Woody).

    This is the quadrant (below average GB and K rates) that you want to avoid. It is inhabited by some of the worst starters in the game. If you fail to miss bats and don't keep the ball on the ground when it is put into play, you are going to run into trouble. There is basically only one way to survive in this quadrant: throwing strikes and maintaining a low walk rate.
    4) ABOVE-AVG GB AND BELOW-AVG K RATES - Group average 4.53 ERA

    Name                    GB%     K/BF
    Elizardo Ramirez        44.00%  14.84%

    The authors thoughts on pitchers with above average GB rates and below averge K rates....
    This is an interesting group of pitchers. As a whole, they rank well behind those in the NE quadrant and well ahead of those in the SW quadrant. Although they are the opposite of the pitchers in the SE quadrant, their results (in terms of ERA) are the most similar. The two groups just get there in drastically different ways. The NW pitchers succeed by inducing grounders and keeping the ball in the park, whereas the SE hurlers thrive on strikeouts.
    Last edited by Ltlabner; 01-09-2007 at 03:36 PM.
    a super volcano of ridonkulous suckitude.

    I simply don't have access to a "cares about RBI" place in my psyche. There is a "mildly curious about OBI%" alcove just before the acid filled lake guarded by robot snipers with lasers which leads to the "cares about RBI" antechamber though. - Nate

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  3. #2
    Churlish Johnny Footstool's Avatar
    Join Date
    Sep 2001
    Olathe, KS

    Re: Groundballs and Strike Outs

    The next piece you should look at is BABIP.
    "I prefer books and movies where the conflict isn't of the extreme cannibal apocalypse variety I guess." Redsfaithful

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