Forgive the lack of information here. I am taking this from a poorly translated article, but in Japan recently a high school pitcher threw 160 kp/h (99 mph).
The pitcher, Shohei Otani, from Hanamaki Higashi High School is 193 cm (6’4″) and 86 kg (189 lbs). The lanky right-handed pitcher showed it was not a fluke. In the 5th inning he threw a pitch 156 km/h and then topped it twice in the 6th when he reached 159 km/h and 160 km/h.
He definitely has a bright future if he chooses to pursue it, and he isn’t fully developed yet.