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John Verducci has discussed a theory for pro pitching that I find interesting. It's called the 30 inning rule. Basically he has found that pro pitchers throwing more than 30 innings over what they did the previous year MAY wind up with an injury.

So why not apply this to HS and college? It makes sense to me, no matter how much a pitcher conditions in those years he still is in the growing and developmental phase of his life.

I find this rule interesting as I have seen high school and college pitchers not on a gradual increase year to year (like the pros). So it may not be how much you threw but how mauch the increase was from year to year.

This might be intersting thing for HS parent and college parent to follow, and take into consideration not how much he threw but increases from year to year. It certainily doesn't make sense to me a pitcher throwing 50 innings should all of a sudden jump teh next year to 100, which we often see. That is often why, your freshman HS and college coach use them sparingly, so by the time they are a junior or senior they have gradually increased, possibly avoiding an injury. Young pitchers are NOT meant to be the team workhorses, especially those that appear to have teh talent to possibly get to teh next level.

Just some thoughs.
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Very interesting point that I never thought of frankly. But in reality there may not end up being much difference in HS ball. At least at the lower levels in our program teams end up playing around 25 games regular season, no playoffs. Which is about the same as a league or travel schedule over the same period. Varsity has a few more games and playoff's which lower levels don't have. Which are more or less the same as league's playoffs. Summer schedules are about the same.

Colleges play more games but they have more pitchers. I guess the largest potential jump could be from HS to college.

A point my son's pitching coach made once is that the stress on the arm goes up significantly once you start throwing over 80 so it seems to me a crtical period may be when you move from a Frosh/JV player to Varsity at the higher velocities.
Last edited by BOF
quote:
Originally posted by TPM:
Put together HS season, summer and fall in a year.


It does make sense but I am curious what their pitching rotation looks like. In HS you have 2 maybe 3 starters and a gaggle of relievers. In league with a 2-man rotation a starter will get a Tuesday or Friday start. The other starter typically picks up non-league games.

I am curious how many starters a college program may carry and what their schedule looks like. Seems to me starts and days rest would remain consistent.

It seems to me the biggest period of risk comes in when a kid gets bigger and stronger and starts to put additional stress on his arm and may not have the benifit of good instruction and proper mechanics.
Last edited by BOF
I'd agree that increases in workload can lead to injury. My guess is that typically that would apply more to increases in workload over a shorter period of time than a year. It would certainly be interesting to see if there's any data to back up the Verducci Rule or if it is something he's observed but hasn't tried to verify.

I think BOF's son's pitching coach has also made a good observation as that is consistent with the ASMI findings. The two factors may play together as it isn't unusual for a pitcher who makes a jump in velocity to also be given a greater workload.

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