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  1. #1
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    Introduction to new stats

    I am sticking a thread for those that want to post about a stat that they have learned about, or is a new stat that they find interesting.

    Do your best to explain in complete, and be able to answer questions for the stat.


    I learned about this stat a few years ago, but it's still useful, and really it is under utilized when discussing teams defenses, and how it might impact a pitcher.


    Defensive efficiency.


    You can find each teams defensive efficiency ratings by going to
    baseball-reference.com
    then select seasons
    2012 mlb
    then under fielding, sort by DefEff

    In 2012, league average was .691

    This is very simply. The number of outs on balls in play that a team converted into outs.

    This is subject to fluctuations by pitchers that give up stronger contact vs weaker contact.

    But it's also a sign of how well a team plays defensively vs another.


    An example is when someone says Justin Verlander had worse defense than Jered Weaver, thus the ERA differences


    Well DefEff
    League average is .691
    Angels led baseball with a .708
    Tigers were 5th to last with a .678

    So there might be some truth to that accusation.


    Anyway, additional tool to use to help find more information

  2. #2
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    I like it. Great thread

  3. #3
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    I would like to introduce my own personally created statistic

    Net Runs Totaled

    wRC+DRS+positional adjustment+BSR

    Everything can be found on Fangraphs

    wRC
    Is the weighted Runs Created by a player (can be found under advanced batting)

    DRS
    Defensive Runs Saved (can be found under advanced fielding)

    Positional Adjustment
    Per 162 games played - so if they play half a season, weigh it based on number of games played at said position, and value each. If a player plays 81 games in LF, and 81 games at 1B, then you would take the average between the two.
    Here are the positional adjustment totals
    Catcher: +12.5 runs (all are per 162 defensive games)
    First Base: -12.5 runs
    Second Base: +2.5 runs
    Third Base: +2.5 runs
    Shortstop: +7.5 runs
    Left Field: -7.5 runs
    Center Field: +2.5 runs
    Right Field: -7.5 runs
    Designated Hitter: -17.5 runs

    BSR
    Just Base Running Runs created
    Under any baseball players page on fangraphs, it's the base running score


    So an example from this season would be
    Austin Jackson
    RC: 97
    DRS: 5
    PA: 2.5
    BSR: 1.2
    = 105.7

    Prince
    RC: 124
    DRS: -4
    PA: -12.5
    BSR: -5.9
    = 101.6


    Gives another snap shot at player value across positions like WAR, and provides additional information

  4. #4
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    OppQual


    It's under baseball-reference during Spring Training.

    It shows the quality level that a hitter for example has been facing vs pitchers.

    Example:

    Oscar Taveras has a 8.4 right now

    10 - MLB
    8 - AAA
    7 - AA
    5 - High A
    4 - Full Season A
    1.5 - 3 - Rookie Ball
    1 - Opposition is a batter not even a pitcher lol.

    http://www.sports-reference.com/blog...ition-measure/

  5. #5
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    Does it apex at 10?

    Or does it distinguish the quality of major league hitters or pitchers pass that number?
    Last edited by metswon69; 03-03-2013 at 06:50 AM.

  6. #6
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    Appears to apex

  7. #7
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    Interesting way to look at things. I like it.

  8. #8
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    Quote Originally Posted by Jeffy25 View Post
    Here are the positional adjustment totals

    Catcher: +12.5 runs (all are per 162 defensive games)
    First Base: -12.5 runs
    Second Base: +2.5 runs
    Third Base: +2.5 runs
    Shortstop: +7.5 runs
    Left Field: -7.5 runs
    Center Field: +2.5 runs
    Right Field: -7.5 runs
    Designated Hitter: -17.5 runs
    I've seen similar numbers before, but they were not the same. While I agree that CF and 3B are very similar, I don't see how either matches 2B. I think 2B is closer to SS then CF or 3B. I also think SS is closer to C than given here. If I was going to keep +12.5 for catcher and +2.5 for 3B/CF, then SS should be 8.5 or 9.0 and 2B should be 6.0 or 5.5.

    Nothing to kick up a fight, but it is pretty quiet here these days.


    6/27/09: “We expect [Rondo] to play by the rules and be a leader as a point guard. We need him to be more of a leader,” Ainge said. “There were just a couple situations where he was late this year, I don’t know if he was sitting in his car, but showed up late and the rest of the team was there. We have team rules and you have to be on time. He was fined for being late, he said he was stuck in traffic, and it’s just unacceptable.”

    Some jerks never learn.....

  9. #9
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    Quote Originally Posted by bagwell368 View Post
    I've seen similar numbers before, but they were not the same. While I agree that CF and 3B are very similar, I don't see how either matches 2B. I think 2B is closer to SS then CF or 3B. I also think SS is closer to C than given here. If I was going to keep +12.5 for catcher and +2.5 for 3B/CF, then SS should be 8.5 or 9.0 and 2B should be 6.0 or 5.5.

    Nothing to kick up a fight, but it is pretty quiet here these days.

    I wouldn't disagree. But the values were created by ball spray charts throughout the league.

  10. #10
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    Quote Originally Posted by Jeffy25 View Post
    I wouldn't disagree. But the values were created by ball spray charts throughout the league.
    From: http://www.baseball-reference.com/about/war_explained_position.shtml

    Current values (per 1350 (150*9) innings played) are:

    C: +10 runs
    SS: +7.5 runs
    2B: +3 runs
    CF: +2.5 runs
    3b: +2 runs
    RF: -7.5 runs
    LF: -7.5 runs
    1B: -10 runs
    DH: -15 runs

    which are a bit different than yours (I expect FG)

    according to Baseball Prospectus, all time average FRAR (fielding runs above replacement) for positions are as follows (per 162 games):

    C: +39
    SS: +32
    2B: +29
    3B: +22
    CF: +24
    LF/RF: +14
    1B: +10

    If anything these different results show more work is needed in this area.
    I do think that both BR and Prospectus are more satisfying than the other result.

    On a side note I find the fielding numbers given by FG at 1B at catcher to not jibe with what I see or what BR says. I also find the UZR numbers from year to year to be too erratic overall. I think using the park factor being given as a single year and 3 year average makes sense in using UZR - which I believe is the intent of the creators, but, not many people seem to heed that..


    6/27/09: “We expect [Rondo] to play by the rules and be a leader as a point guard. We need him to be more of a leader,” Ainge said. “There were just a couple situations where he was late this year, I don’t know if he was sitting in his car, but showed up late and the rest of the team was there. We have team rules and you have to be on time. He was fined for being late, he said he was stuck in traffic, and it’s just unacceptable.”

    Some jerks never learn.....

  11. #11
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    This is important. It contains "secret ZiPS insider knowledge."

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