Three sleeper RB prospects emerge

Melvin Gordon, left, and Ameer Abdullah had very different outcomes in the Speed Score metric. USA TODAY Sports

Speed Score results from the 2015 NFL scouting combine suggest that this is a good year for running back prospects, but by no means a historic one. One of this year's top prospects impressed, one did not. We now have a surprising sleeper with the top Speed Score of this year's combine, and another player so slow he pretty much disqualified himself from being considered draftable.

Let's take a look at this year's results: