I saw this on twitter and I want to know what unit is the x-axis using. If it’s in yards like I assume it is, why does this chart matter when the highest average separation is 0.04 yards?

  • UglandHouseB
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    1 year ago

    Logically, 0.04 yards is 1.44 inches, which doesn’t make any sense. Because he is counting in hundredths, and there are also 100 yards on the field (meaning 0.01 is 1 yard), that is probably what he is referring to. Which means that given an average receiver separation of around 3.8 yards (11.4 feet), he is throwing to them a little less than 60% of the time.

  • UglandHouseB
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    1 year ago

    After looking at the chart again, there appears to be a negative average receiver separation for Fields, which doesn’t make any sense and means that there’s a baseline that is not provided; and further, what then constitutes an “open receiver”? I’d imagine that this measurement is something like this: The separation of the receiver a QB throws to less the baseline, divided by the sum of all of the receivers’ separation, expressed as a percentage. The y-axis is probably a piecewise function for each time a receiver had more than the baseline amount of yards over total number of throws. So, if the baseline is 2 yards, and we have a set of 5 throws expressed in yards = {1, 3, 12, 4, 15}, and the % of throws to open receivers is the horizontal line 80%, because 1 < 2, which is 0, and the rest of the throws are greater than 2, so (0+1+1+1+1)/5 = 80%.