Ever wonder exactly how fast you can run? Ever wonder how fast you could run at age 40?

A Richland man tried to find out the answer to the latter question on his 40th birthday with the help of the Richland police.

He set up a "short" sprint by a radar machine in Richland, had the police film him, and then post the video on their Facebook.

Now we know the answer!...6 miles per hour! lol