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The equivalent of an 80mph pitch from 47ft at 54ft is 54/47*80 = 91.9 mph.
If you can throw a baseball 95 mph consistently and move it around the strike zone with control, and can throw a lot of them without losing speed over a given period, say 20 minutes to a half an hour, then yes you can have a pitching career in baseball.
73 mph
90-100 mph
No. Only a very few of them can throw 100 mph. They don't exceed 100 mph by much - 101, 102 is tops. Most of them throw a fastball in the 90's, and a few have a fastball in the 80's.
flicking your wrist doesn't always help.. i only get about 94 mph when i flick my wrist.. There's some secret to it that i don't know
105-110 mph.
Anywhere from 45 to 60 mph. I would say the average would be closer to 60.
114 mph
well it depends how hard you throw it. pros usually throw it about 60 mph. non pros uaually throw it around 40 mph. (with alot a practice and experience)
I am twelve and I can throw about 70-75 mph. For an average child maybe 80-85 mph.