The real question is how fast is your average rugby player because that's what we are looking at to judge him
Oh, there have been guys as fast as why you see in the NFL. RIDICULOUSLY fast.
Now if you played that in rewind and at 1/10 speed, you would get my top speed. Rugby is a game that can be played by men and women of many sizes and skills.....mine was NOT speed.
No doubt that guy is very very fast, but I have seen some guys in the NFL that are just plain ridiculous. Tyreek Hill is one of those guys, Jamaal Charles when he was in his prime, Chris Johnson, to name a few that were just different level speed.