Wendall Williams, a wide receiver from an NAIA Division I college in Kentucky, ran the 40-yard dash in 4.19 seconds at the NFL regional combine in Winter Park, Minnesota, on Saturday.
Williams' time was posted on the NFL regional combine Twitter feed. It was timed by hand by regional combine evaluators. Several scouts from NFL clubs were present, and they recorded similar times by hand as the regional combine personnel.
Williams' time was tracked at 4.32 with laser timing.
Running back Chris Johnson's official time of 4.24 in 2010 is the benchmark for combine speed.
Johnson took to Twitter on Sunday to emphasize that Williams' official time (by laser) wouldn't have broken his record.
Everybody relax he ran a unofficial time of 4.19 and his official time (laser) meaning real time was a 4.32
— Chris Johnson (@ChrisJohnson28) March 6, 2016
Williams also posted a vertical jump mark of 45.0 inches, which would have tied the combine record held by Ohio State's Donald Washington and Georgia's Chris Conley.
"I didn't see the numbers, but I couldn't believe them at first,'' Williams told The Associated Press by phone on Sunday. "I thought I ran something good, but not that good. But then I saw the reaction from the other guys and realized it was pretty good.''
He is now dealing with sudden fame his speed has created.
"I can't even explain how many texts and phone calls I've gotten,'' he added. "It's been outrageous.''
Williams, 5-foot-10 and 185 pounds, was a receiver, rusher and return man for the University of the Cumberlands. The Syracuse, New York, native scored 15 touchdowns in 10 games last season as a senior (eight receiving, three rushing, four special teams).
ESPN's Adam Schefter and The Associated Press was used in this report.