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  1. #1

    Arrow My first NBA model tracking thread

    spent yesterday morning figuring this out. this model just take the team's relative strength and ability to cover spread and calc the possible outcome of the game. i started with this very simple 2 variable model, and calculated the results for last night and calibrated the parameters.

    for last night, my model picked (all spreads)
    NYK-PP
    LAC-NN
    CHA-NP
    DET-NP
    ATL-NP
    DEN-NN
    SAC-NP
    LAL-NN

    overall: 5-2-1, then i looked closer, my model has 3 catagories of results PP,NP, NN (p=positive, n=negative).

    here is last night;s results based on the 3 catagories:

    PP= 1-0
    NP= 1-2-1
    NN= 3-0

    these sample size are way too small to yield any meaningful conclusion. so i'll live test this prediction model for this week.

    For tonight's game, here is the model results:

    ORL-PP
    OKC-PP
    BOS-NP
    MIA-NP
    MEM-NP

    (these are all predictions in respect to the closing line...i suggest you not to take this model too seriously at this point cuz i am still testing it)

  2. #2

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    can you explain the significance of PP NP and NN in more detail please

  3. #3

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    Quote Originally Posted by LUNT101 View Post
    can you explain the significance of PP NP and NN in more detail please
    my model outputs an number. it can be positive or negative. positive means that this team has a higher chance of covering the spread based on the matchup, negative means this team has a lower chance of covering the spread based on the matchup.

    it is actually two predictions, one for each team based on the game match up. sometimes, i get postive outputs for both teams, sometimes i get one positive and one negative.

    i thought about it yesterday, my model makes intuitive sense, so i think it has potential.

  4. #4

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    so, for example, you have NN next to the Lakers game. that means that you put the lakers and rockets into your equation and it said both of them have a low chance of covering the spread? how do you interpret that and how does that lead you to take the Lakers?

  5. #5

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    Quote Originally Posted by LUNT101 View Post
    so, for example, you have NN next to the Lakers game. that means that you put the lakers and rockets into your equation and it said both of them have a low chance of covering the spread? how do you interpret that and how does that lead you to take the Lakers?
    yes, for some reason my model said both teams might not cover the spread, but the number for HOU is a very large negative number and the LAL output is a small negative number within single digits. that is why i pick the LAL.

    come to think of it, rather than P, N, i should just find the difference between the two predictions.

    let's see how tonight goes, and i'll update it tomorrow.

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  7. #7

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    For tonight's game, here is the model results:

    ORL-PP - loss
    OKC-PP - win
    BOS-NP - loss
    MIA-NP - loss
    MEM-NP - win


    over all: 7-5-1
    by category

    PP= 2-1
    NP= 2-4-1
    NN= 3-0



    i found a better way to calibrate the model. i'll run the new version for these games and see how they compare. give me 30 min...

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    results did not change. so let me put the estimation difference next to the yesterday and today's results:

    sunday
    UTA-NYK -193 win PP
    DAL-LAC -32 win NN
    TOR-CHA -58 loss NP
    BOS-DET -20 loss NP
    ATL-OKC +167 push PN
    MEM-DEN -1046 win NN
    GSW-SAC +518 loss PP
    HOU-LAL -16 win NN

    monday
    POR-ORL -9 loss PP
    OKC-IND +9 win PP
    TOR-BOS -68 loss NP
    NJN-MIA -152 loss NP
    MEM-PHX +65 win PN
    Last edited by pico; 11-11-08 at 12:14 AM.

  10. #10

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    over all: 6-6-1...hmm not so good. let's see how it does for the rest of the week. i might scrap this if it turn out to be 50%.

  11. #11

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    Tuesday
    UTA-PHI +51 win
    DEN-CHA -144 loss
    MIL-CLE -60 loss
    ATL-CHi -68 loss
    LAL-DAL +11 win
    NYK-SAN -41 win
    DET-SAC -466 push
    MIN-GSW +13 win

    4-3-1

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  14. #14

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    ill be the first to say this. if anyone finds an algortihm to predict gambling of any sort, then they will be a wealthy person.
    so far i have yet to see anything come remotely close. but good luck with it

  15. #15

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    pico,

    as of now it seems like plus numbers do very well my friend
    3-0 yesterday
    2-0 monday
    0-1-1 sunday
    so 5-1-1 overall for plus numbers
    not quiet sure what plus numbers mean, but I am very interested in systems like that
    so if you want to share some infos with me pm me or maybe even with all of us post it hear (maybe it has potential)

    thx for your work

  16. #16

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    goodluck to your system pico interesting how its going to go through the season as more data becomes available

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