The fastest child on earth is 7.4
THe world record for fastest texting is 140 characters in 40 seconds
Green's fastest recorded 40 time is 4.09 seconds. ------------------------- Green's fastest unrecorded 40 time is 3.81 seconds.
3.8 seconds
The Greyhound is considered the world's fastest dog, capable of reaching speeds up to 45 miles per hour.
The fastest 40 yard dash time is 4.22 seconds, achieved by John Ross at the NFL Scouting Combine in 2017.
4.3
4.40
4.28 maybe
The fastest offensive lineman of all time is a contemporary left tackle for the new England patriots. Kauzer ran a 4.43 40.
His 5.0 40-meter dash translates to a time of 4.572 seconds in the 40-yard dash.
The fastest men's time recorded at London was run in 2011 by Emmanuel Mutai in a time of 2:04:40.