Arkansas RB Knile Davis' "Speed Score" of 124.5 is the second highest ever recorded by Football Outsiders based on player build and speed.
The "Speed Score" uses a mathematical formula in an attempt to measure speed given size. Speed Score has plenty of historical flaws, but has accurately predicted busts like Knowshon Moreno while forecasting Chris Johnson and Brandon Jacobs' success. The all-time leader in "Speed Score" is current Broncos RB Mario Fannin (125.5), who went undrafted out of Auburn and has done nothing in the NFL. Nevertheless, Davis has a special speed-size combination and will be a mid- to late-round pick to monitor in the 2013 preseason.