Spin rate

[Tango]

How does spin rate correlate to speed? If spin rate increases will speed?

 

[Towny9]

Increasing velocity will almost always increase spin rate. Two pitches with the same velocity and different spin rates - the higher spin rate pitch will move more.

Increasing spin rate alone, in my understanding, will not increase velocity (all other things staying constant).

What would be interesting to know is if higher spin rate makes the ball hold its velocity longer or carry longer.

 

[Rolling Hard]

Seen pitcher who's CB is faster than her fastball. I think in the attempt to spin it she gained more whip.

 

[Tango]

When younger my DD threw all spin pitches faster than her FB.

 

[Chilixa]

Interesting discussion. My DD throws a true riseball and she gets a lot of spin on it. But it is much slower than her fastball. Was told the extra spin is what actually slows it down. So I was under the perception more spin on the same pitch actually slows it down because of more air resistance against the seams. But I have been wrong before. Curious to see different perspectives on spin and it’s effects on velocity.


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[cnardone]

I am not sure that is true. Last year in baseball they cracked down on foreign substances on the ball. Spin rates were down 10%. There was no discussion or analysis of increased velocity.

 

[LEsoftballdad]

My daughter's spin pitches, her curve and rise, are her fastest pitches. Her fastball is 61 MPH, max. Her rise and curve have hit 64 MPH.

When I asked her pitching coach why that was, her response was that she has the ball more in her fingers than her palm. She tends to over grip the ball on her fastball, but the spin pitches can't spin if she's gripping too hard.

 

[ArmWhip]

Softball is unique in that when you throw a rise or a palm up curve you have a cupped wrist which adds to the effect of IR. You gain nothing from IR if your elbow is locked, having some flex is necessary for the added mechanical advantage. Cupping the wrist is similar to the elbow flex.

 

[sluggers]

Was told the extra spin is what actually slows it down. So I was under the perception more spin on the same pitch actually slows it down because of more air resistance against the seams.

Doesn't have any thing to do with the spin.

If she is throwing a true riseball, it is impossible to do the IR as well.

The final step of the IR is the pronation of the forearm. If the forearm doesn't pronate, the speed will decrease.

If a kid is throwing a bullet spin riseball, there may not be any decrease in speed, but the ball won't move as much.

 

[Tango]

If your spin rate goes up on the FB will speed increase, both 12/6 rotation?