Just joking RM

when Joe Kittinger stepped of his platform in 1960 it was said he made his jump from the edge of space.
Joe jumped from 102,800 foot above sea level, although it is hard to determine where space starts, it's generally acceppted that it is 100km or 62.5 miles.
This guy is well short of space, but quite a lot higher than Joe jumped from. Joe went through the sound barrier at 714mph, I wonder what speed this guy will reach ?
Good luck to him.
Sam.