Welcome to PatsFans.com

Why QB Rating doesn't tell the entire story...

Discussion in 'PatsFans.com - Patriots Fan Forum' started by TBonePatsFan, Oct 19, 2009.

Thread Status:
Not open for further replies.
  1. TBonePatsFan

    TBonePatsFan Rookie

    Joined:
    Jun 20, 2005
    Messages:
    247
    Likes Received:
    0
    Ratings:
    +0 / 0 / -0

    As you can see below, Drew Brees (who had an amazing game against a much better defense in the Giants) ended up with a higher QB Rating this weekend. Brady threw for 2 more TDs, more yards and a higher completion percentage. It appears that the only area Brees beat him in was yards/attempt. How is it possible that Brady's QB Rating isn't much higher? or perfect?

    T. Brady, NE 29/34 380 6 0 152.8
    D. Brees, NO 23/30 369 4 0 156.8

    I've always heard that QB Rating isn't a perfect representation of how well a QB plays, but seeing these stats side-by-side really helped me see it for myself.
  2. cmasspatsfan

    cmasspatsfan Rookie

    Joined:
    May 3, 2008
    Messages:
    2,721
    Likes Received:
    4
    Ratings:
    +8 / 0 / -0

    Re: Why QB Rating doesn't tell the entire story ...

    Yards per attempt is a big part of the formula. I dont pay much attention too it unless its a rediculous number like Sanchises yesterday, I think it was 8, that indicated a pretty bad day.
  3. Patspsycho

    Patspsycho Rookie

    Joined:
    Aug 13, 2009
    Messages:
    9,930
    Likes Received:
    0
    Ratings:
    +0 / 0 / -0

    Re: Why QB Rating doesn't tell the entire story ...

    Brady scored low in YPA and that pulled the cumulative score down.
  4. insidenation

    insidenation Rookie

    Joined:
    Sep 26, 2009
    Messages:
    13
    Likes Received:
    0
    Ratings:
    +0 / 0 / -0

    Re: Why QB Rating doesn't tell the entire story ...

    same notice here Patspsycho,
  5. ewg_gestalt

    ewg_gestalt Rookie

    Joined:
    Nov 27, 2007
    Messages:
    434
    Likes Received:
    9
    Ratings:
    +29 / 0 / -0

    Part of the problem is that the QB ratings have both maximum and minimum values for each component: once each component maxes out, a QB gets no more credit for better performance. Similarly, they can't lose points as a result of their performance.

    If you took away the limits, you'd get:

    Brady: (2.764 + 3.529 + 2.375 + 2.044) / 0.06 = 178.5
    Brees: (2.333 + 2.353 + 2.375 + 2.325) / 0.06 = 156.5

    For comparison, in the Miami game where Brady had a "perfect rating", he would have had a line of

    Brady: (2.700 + 4.800 + 2.375 + 2.790) / 0.06 = 211.1

    while Sanchise and the Titans QBs would have had:

    Sanchez: (0.224 + 0.000 - 1.935 + 0.965) / 0.06 = -12.4
    Collins: (-0.667 + 0.000 + 0.291 - 0.895) / 0.06 = -21.8
    Young: (-1.500 + 0.000 - 10.125 + 0.000) / 0.06 = -193.75
Thread Status:
Not open for further replies.

Share This Page

unset ($sidebar_block_show); ?>