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According to the Data: Predicting Breakout Running Backs

Jonathan Bales

Jonathan Bales

Jonathan Bales is the author of the Fantasy Football for Smart People book series. In addition to RotoWire, Jonathan also provides content to the New York Times, Dallas Morning News,, and NBC.

Predicting Breakouts from Young Running Backs

"Running backs need to be quick, not necessarily fast. Quickness matters more than straight speed."

- Every NFL television analyst ever

In theory, it seems to make sense that running backs would benefit more from quickness than straight-line speed. They frequently work in traffic and certainly need the ability to make defenders miss in tight areas.

But I've shown in the past that straight-line speed, measured by the 40-yard dash, is highly predictive of NFL success for running backs. The running backs who post the best numbers continually run better than 4.50 in the 40-yard dash.
Yes, there are outliers. But for every Alfred Morris you can name, I can name five Ray Rice's (4.42, believe it or not).

In addition to speed, I want to see which other measurables might be predictive of NFL success for backs.

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