*All Seasons - NSFL/DSFL Passing Statistics

[Yeenoghu]

Updated Link

Ask and ye shall receive! I have added historical passing data for all NSFL and DSFL seasons. The default view includes all seasons, but you can now filter by season on the dashboard.
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In addition, you can view a specific team's data by clicking on their team name in the legend. This will highlight the selected team's data points and create a team-specific trendline (while still showing the trendline for the overall data in the background). Next up--rushing data!
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Some observations after including historical data--

• As you might expect much of the noise that was observed in my initial post has been eliminated, and NSFL/DSFL generally line up well. However, there are a few outstanding differences.
• Passing attempts and passing completions has a positive correlation with winning in the NSFL, and interceptions and Int% have a clear negative correlation with winning. However, none of these variables are historically significant to DSFL wins! What might this mean? Others with more experience might have a definitive answer, but my intuition is that it's generally difficult for a DSFL QB to separate themselves from their peers. In other words, DSFL QBs are going to have approximately the same TPE and therefore throw a similar amount of interceptions. This warrants further research and is a potential topic for a later post.
• Longest pass is correlated with wins in the NSFL--this one is really puzzling to me! Why does the longest pass that a QB threw during a season account for ~18% of the variance in wins? Perhaps there is some covariance with passing attempts--we can already see that passing attempts is correlated with winning, so perhaps teams that pass have more opportunities to threw a longer pass? Or maybe individual roster composition comes into play--do teams with a higher value for longest pass have particularly good wide receivers that are contributing to their wins? Another topic for additional discussion.

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