Who has the fastest 40 yard dash in the nfl combine?
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Who has the fastest official 40 yard dash at the NFL Combine since electronic timing was implemented?
John Ross
Bo Jackson claimed to have run a 40-yard dash with a time of 4.13 s, and there were also reports of Jackson running a 4.12 at the 1986 combine. Texas Tech's Jakeem Grant was hand-timed by a New Orleans Saints scout as running a 4.10 in 2016, potentially beating Jackson's record. In the early 1980s, Baylor's Gerald McNeil ran a 4.19-second 40-yard dash before being signed to the United States Football League (USFL). Deion Sanders ran a 4.27-second 40-yard dash in 1989.
Who was reported to have run the fastest 40 yard dash ever at the 1986 NFL combine?
Bo Jackson
40-yard dash
Bo Jackson claimed to have run a 40-yard dash with a time of 4.13 s, and there were also reports of Jackson running a 4.12 at the 1986 combine. Texas Tech's Jakeem Grant was hand-timed by a New Orleans Saints scout as running a 4.10 in 2016, potentially beating Jackson's record. In the early 1980s, Baylor's Gerald McNeil ran a 4.19-second 40-yard dash before being signed to the United States Football League (USFL). Deion Sanders ran a 4.27-second 40-yard dash in 1989.
Who was claimed to have the fastest ever 40 yard dash at an NFL combine according to hand timing in 2016?
Jakeem Grant
40-yard dash
NFL Scouting Combine
https://en.wikipedia.org/wiki/NFL%20Scouting%20Combine
40-yard dash
https://en.wikipedia.org/wiki/40-yard%20dash
This is a list of the official 40-yard dash results of under 4.31 seconds recorded at the NFL Scouting combine since 1999, the first year electronic timing was implemented at the NFL Scouting Combine.[15][16]

Time	Name	Height	Weight	Position	College	Year	Draft	R
4.22	John Ross	5 ft 11 in (1.80 m)	190 lb (86.2 kg; 13.6 st)	Wide receiver	Washington	2017	No. 9 overall by Cincinnati Bengals.
40-yard dash
Since the NFL implemented electronic timing in 1999, John Ross has the fastest 40 yard dash at the NFL Combine, which was a 4.22 second run in 2017. Prior to the implementation of electronic timing, Bo Jackson claimed to have ran a 40 yard dash in 4.13 seconds in 1986, making him have the fastest time at the NFL Combine. Then, in 2016, Jakeem Grant was hand timed doing a 40 yard dash in 4.10 seconds at the NFL Combine, making it the fastest time.