NTG 2016 LHP son, with long toss and band work, plus regular throwing program outlined for him by local D1 school jumped from last year's 81 tops (range 78-80) at local venue with gun to 86 (range 83-84) at same venue in one year. These were velocities recorded in-game over four innings.
He was in a supervised, strenuous conditioning program from November through February and will resume it weekdays once HS season ends. Weekends are already taken up with the summer travel circuit.
6'0" 160lbs.Was 5'10" 140 lbs a year ago. Biggest benefit of his growth and the program has been his ability to go up in his pitch count with no residual pain/soreness and no fall-off in velocity in the later innings.
However, as his velocity has increased, his location has suffered. His instructors advise him to keep working on his body and as he becomes accustomed to the difference in his stride and arm speed his ability to locate will come back.
I guess that's the trade off as these kids mature and have to learn to cope with major changes to their bodies.