History of the Career Rushing Yards Record

Seemingly every offseason for the last half decade, Adrian Peterson has made slow-news-day headlines by reiterating his goal of breaking Emmitt Smith‘s career rushing yards record. Normally, this notion would be dismissed. However, given Peterson’s production to date, in concert with his remarkable physical conditioning and recovery ability, his words hold more weight than those of other backs.1 While Peterson’s goal pops up in the news every now and then, the history of the record itself is rarely covered. We’ll see an offhand remark about…

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Regular Season QBGOAT XIV: Cascaded Soft Inflation Adjustment

This is the fourteenth and final installment in the series on the most statistically dominant regular season quarterbacks in NFL history. If you’ve been following along, I appreciate it; if not, you may want to check it out from the beginning. Today we’ll be looking at career stats with a cascaded soft inflation adjustment. If you’re not familiar, cascaded is the term I use to describe the act of giving 100% credit to a player’s best season, 96% to his second best season, 92% to…

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Regular Season QBGOAT XIII: Cascaded Hard Inflation Adjustment

Welcome to part thirteen in the regular season QB GOAT series. In this post, we’ll look at quarterback careers through the lens of Total Adjusted Yards relative to the rest of the league, given a cascaded hard inflation adjustment.1¬†With the hard inflation adjustment, you’re going to see some leaps in the rankings from older players that might seem shocking. Otto Graham, Fran Tarkenton, Sammy Baugh, Sid Luckman, and Johnny Unitas all make considerable jumps when we account for the evolution of quarterback usage rates. This…

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Regular Season QBGOAT XII: Cascaded Prorated Career Stats

In my last post, I showed you the cascaded career stats for every qualifying quarterback since 1932.1 Today, we’ll look at cascaded prorated stats for those players. The purpose of cascading, of course, is to give more credit to quarterbacks with higher peaks. And the rationale behind prorating is to put quarterbacks who played before the 16-game schedule on level ground with modern players.¬†Essentially, what we are going to be looking at this list, but adjusting to mitigate the effect of poor seasons and increase…

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Regular Season QBGOAT XI: Cascaded Career Stats

When Pro Football Reference calculates career Approximate Value, they use a method in which they give 100% credit for a player’s best season, 95% for his second best season, 90% for his third season, and so on. Similarly, Chase Stuart utilizes this method when separating the wheat from the chaff in his own quarterback series. I don’t really know of a name for that methodology, so I have taken to calling it cascading the stats. As you may have guessed by the title, this article…

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