Converter / 200 miles per hour / 100-mph fastballs
How many 100-mph fastballs is 200 miles per hour?
200 miles per hour is roughly 2 100-mph fastballs.
That's roughly
2100-mph fastballs
Assuming one 100-mph fastball is 100 mph, by name (161 km/h, if you insist).
Also equal to
The math
One 100-mph fastball is 100 mph, by name, or 161 km/h in metric. 200 miles per hour is 322 km/h. Divide one by the other:
322 km/h ÷ 161 km/h ≈ 2 100-mph fastballs
Yes, we did the math in metric. Someone had to.