One of the more highly-anticipated and widely-publicized events at the annual NFL Scouting Combine in Indianapolis, Ind. has been, and always will be, the 40-yard dash.
By position group, this year's standouts included Virginia Tech quarterback Logan Thomas (4.61 seconds), Kent St. running back Dri Archer (4.26), Oregon St. wide receiver Brandin Cooks (4.33), Tennessee St. tight end A.C. Leonard (4.5), Michigan offensive lineman Taylor Lewan (4.87), South Carolina defensive lineman Jadeveon Clowney (4.53), Boston College linebacker Kevin Peirre-Louis (4.51), and Oklahoma St. defensive back Justin Gilbert (4.37).
Current Tennessee Titans running back Chris Johnson holds the all-time record in the short sprint, clocking in at 4.24 seconds in 2008. The event has even attracted a cult-like following for NFL Network personality Rich Eisen, who ran a sub 6-second 40 (5.98) earlier this afternoon for the first time since he volunteered himself to the competition - in full suit and tie - in 2005.
But what's thought to produce the convention's "sexiest" statistic has also unturned some rather unflattering - and funny - facial expressions this year.
Via Twitter, the NFL has released a series of photos - "Faces of the 40-yard Dash" - that highlight some of the nation's best college football players as they power 40 yards down the sideline. The images make it very clear - these guys know every hundredth of a second counts.