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Author Topic: Equation to find matched number of a bowler  (Read 5444 times)

zenzd

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Equation to find matched number of a bowler
« on: November 12, 2017, 10:29:35 AM »
If you've ever heard people talk about matched, rev dominant or speed dominant bowlers, this article I have written of will help define it. What I have come up with serves to help define bowlers in a new way. Read if interested and feedback is welcome. Please let me know if I can explain anything better.

Here is the article: externalfile:drive-45f2f09253cd1df250f032f48c9aac66cd76ffa0/root/Identifying Matched Number of a Bowler.pdf
« Last Edit: November 12, 2017, 12:29:10 PM by zenzd »
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zenzd

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Re: Equation to find matched number of a bowler
« Reply #16 on: November 12, 2017, 03:53:51 PM »
Quote from: MI 2 AZ on November 12, 2017, 02:55:03 PM
Are you sure about the formula  x=.04847rs  ?

200 revs, 14 mph means I would have to really slow down or drop revs to get to 1.

If I keep my revs at 200, I would have to drop down to a fraction of a mile.  Or if I keep my speed, my revs would have to be between 1-2 revs.  Not sure if I can do that.

Or my calculator is not working correctly.

I think that your calculations might be wrong. I recommend using mathway.com because it is easy to see what you are putting in. If you were to keep your speed, you would have to increase revs to 287, and if you kept rpm, would have to lower speed to about 9 mph, which would be difficult.
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zenzd

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Re: Equation to find matched number of a bowler
« Reply #17 on: November 12, 2017, 03:55:29 PM »
Quote from: Aloarjr810 on November 12, 2017, 02:57:34 PM
My eyes kind of glazed over looking at that, But it kind of reminds me of the USBC release ratio calculation for some reason.

which can be seen in this video at about the 37min. mark:

Understanding Ball Motion to elevate your game
https://www.youtube.com/watch?v=MxoDM9B2Jyk

Heres your article in pdf.

you should post this over on forum.bowlingchat.net those guys will rip it apart and tell you if it holds water.

Thank you very much! I will do that.
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MI 2 AZ

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Re: Equation to find matched number of a bowler
« Reply #18 on: November 12, 2017, 04:29:34 PM »
Quote from: zenzd on November 12, 2017, 03:53:51 PM
Quote from: MI 2 AZ on November 12, 2017, 02:55:03 PM
Are you sure about the formula  x=.04847rs  ?

200 revs, 14 mph means I would have to really slow down or drop revs to get to 1.

If I keep my revs at 200, I would have to drop down to a fraction of a mile.  Or if I keep my speed, my revs would have to be between 1-2 revs.  Not sure if I can do that.

Or my calculator is not working correctly.

I think that your calculations might be wrong. I recommend using mathway.com because it is easy to see what you are putting in. If you were to keep your speed, you would have to increase revs to 287, and if you kept rpm, would have to lower speed to about 9 mph, which would be difficult.

If I keep speed and change revs to 287, then x=.04847rs so x=.04847(287)(14)

Is that correct?   I don't see it equaling 1 or close to it.



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Six decades of league bowling and still learning.

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zenzd

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Re: Equation to find matched number of a bowler
« Reply #19 on: November 12, 2017, 04:32:32 PM »
Quote from: zenzd on November 12, 2017, 03:53:51 PM
Quote from: MI 2 AZ on November 12, 2017, 02:55:03 PM
Are you sure about the formula  x=.04847rs  ?

200 revs, 14 mph means I would have to really slow down or drop revs to get to 1.

If I keep my revs at 200, I would have to drop down to a fraction of a mile.  Or if I keep my speed, my revs would have to be between 1-2 revs.  Not sure if I can do that.

Or my calculator is not working correctly.

I think that your calculations might be wrong. I recommend using mathway.com because it is easy to see what you are putting in. If you were to keep your speed, you would have to increase revs to 287, and if you kept rpm, would have to lower speed to about 9 mph, which would be difficult.

Very sorry if I caused you any confusion. That particular formula should be over S, not times S. It would be x=(0.04878r)/s
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zenzd

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Re: Equation to find matched number of a bowler
« Reply #20 on: November 12, 2017, 04:36:42 PM »
Quote from: MI 2 AZ on November 12, 2017, 04:29:34 PM
Quote from: zenzd on November 12, 2017, 03:53:51 PM
Quote from: MI 2 AZ on November 12, 2017, 02:55:03 PM
Are you sure about the formula  x=.04847rs  ?

200 revs, 14 mph means I would have to really slow down or drop revs to get to 1.

If I keep my revs at 200, I would have to drop down to a fraction of a mile.  Or if I keep my speed, my revs would have to be between 1-2 revs.  Not sure if I can do that.

Or my calculator is not working correctly.

I think that your calculations might be wrong. I recommend using mathway.com because it is easy to see what you are putting in. If you were to keep your speed, you would have to increase revs to 287, and if you kept rpm, would have to lower speed to about 9 mph, which would be difficult.

If I keep speed and change revs to 287, then x=.04847rs so x=.04847(287)(14)

Is that correct?   I don't see it equaling 1 or close to it.

Yes, I have found a mistake in the article. when I posted it from my document, it changed the formulas. in other words, it got rid of the fractions, which is why you are getting different answers. I have edited it and fixed it.
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zenzd

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Re: Equation to find matched number of a bowler
« Reply #21 on: November 12, 2017, 04:49:20 PM »
PLEASE NOTE
The equations in the pdf version are messed up, they are not correct. I have corrected them in the post of the article. Here they are for safe measure
X=0.04878R/S  S=0.04878R/X  R=20.5XS

Corrected PDF
« Last Edit: November 12, 2017, 05:03:57 PM by zenzd »
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MI 2 AZ

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Re: Equation to find matched number of a bowler
« Reply #22 on: November 12, 2017, 05:11:32 PM »
Quote from: zenzd on November 12, 2017, 04:36:42 PM
Quote from: MI 2 AZ on November 12, 2017, 04:29:34 PM
Quote from: zenzd on November 12, 2017, 03:53:51 PM
Quote from: MI 2 AZ on November 12, 2017, 02:55:03 PM
Are you sure about the formula  x=.04847rs  ?

200 revs, 14 mph means I would have to really slow down or drop revs to get to 1.

If I keep my revs at 200, I would have to drop down to a fraction of a mile.  Or if I keep my speed, my revs would have to be between 1-2 revs.  Not sure if I can do that.

Or my calculator is not working correctly.

I think that your calculations might be wrong. I recommend using mathway.com because it is easy to see what you are putting in. If you were to keep your speed, you would have to increase revs to 287, and if you kept rpm, would have to lower speed to about 9 mph, which would be difficult.

If I keep speed and change revs to 287, then x=.04847rs so x=.04847(287)(14)

Is that correct?   I don't see it equaling 1 or close to it.

Yes, I have found a mistake in the article. when I posted it from my document, it changed the formulas. in other words, it got rid of the fractions, which is why you are getting different answers. I have edited it and fixed it.

Okay, thanks for the correction.  One other question - ball speed as measured at the pins or off the hand?

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Six decades of league bowling and still learning.

ABC/USBC Lifetime Member since Aug 1995.

zenzd

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Re: Equation to find matched number of a bowler
« Reply #23 on: November 12, 2017, 05:16:26 PM »
Quote from: MI 2 AZ on November 12, 2017, 05:11:32 PM
Quote from: zenzd on November 12, 2017, 04:36:42 PM
Quote from: MI 2 AZ on November 12, 2017, 04:29:34 PM
Quote from: zenzd on November 12, 2017, 03:53:51 PM
Quote from: MI 2 AZ on November 12, 2017, 02:55:03 PM
Are you sure about the formula  x=.04847rs  ?

200 revs, 14 mph means I would have to really slow down or drop revs to get to 1.

If I keep my revs at 200, I would have to drop down to a fraction of a mile.  Or if I keep my speed, my revs would have to be between 1-2 revs.  Not sure if I can do that.

Or my calculator is not working correctly.

I think that your calculations might be wrong. I recommend using mathway.com because it is easy to see what you are putting in. If you were to keep your speed, you would have to increase revs to 287, and if you kept rpm, would have to lower speed to about 9 mph, which would be difficult.

If I keep speed and change revs to 287, then x=.04847rs so x=.04847(287)(14)

Is that correct?   I don't see it equaling 1 or close to it.

Yes, I have found a mistake in the article. when I posted it from my document, it changed the formulas. in other words, it got rid of the fractions, which is why you are getting different answers. I have edited it and fixed it.

Okay, thanks for the correction.  One other question - ball speed as measured at the pins or off the hand?

I would use the speed as displayed on score screen, the one picked up by the speedometer downlane. So use speed at the pins. At least thats how I did it.
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giddyupddp

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Re: Equation to find matched number of a bowler
« Reply #24 on: November 13, 2017, 08:41:01 PM »
Sht I started reading this on Sunday and I just woke up..... :P
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