"Several years of dedicated football training later, he recorded a 4.38 second 40-yard dash at the 2007 NFL combine, a time that roughly converts to about 11.98 seconds for 100 meters. Had he run that time in this year's Olympic final, he would have finished more than two full seconds behind Bolt, and just barely ahead of former world record-holder Asafa Powell, who limped to an eighth place finish in 11.99 seconds after suffering a groin injury. To find an Olympiad where Peterson's time would have earned him the gold, you'd have to go back to 1896, where Thomas Burke broke the tape in 12 seconds flat."
I know their numbers are based on assuming the same average speed for 100m that Peterson ran for 40 yds., but do they not understand that is not a "rough conversion"? I am sure AD can run a faster time than a mediocre JV high school sprinter.