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Visual Pitching Velocity
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McHugh75
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July 26, 2012 – 12:28 pm
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I think that we’ve all seen the Aroldis Chapman Sports Science video. Well one of the things that this video mentions but doesn’t fully discuss is Visual Velocity. 

 

1. The video states that the typical major league stride is 87% of the pitcher’s height.

2. It also mentions that 1 ft.=3 mph to the hitters eye.

3. From this site http://sportsologist.com/mlb-i…..by-height/ I gathered that the average major league pitcher’s height is 6’2”.

 

Now using my amazing math skills Cool, I devised an equation that can tell you how many visual mph’s you can add (or subtract for short strides) to your radar reading. 

 

((Your Stride)-(6’2” x 87%))/4 = however many visual mph’s you can add. 

 

If your a big guy who utilizes 3x mechanics, you may appear to be throwing 4-6 mph faster than you actually are!

“What I gave I have, what I didn’t give I’ve lost forever.” ~ Dan Devine

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Brent Pourciau USAW Certified
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July 26, 2012 – 12:41 pm
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This is good stuff. Maybe you can put together a chart that has height on the left and stride length going across the top and the visual velocity populating the middle of the chart.

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McHugh75
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July 26, 2012 – 1:01 pm
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Brent,

I’m interested in creating this graph but I don’t fully understand what type of graph you mean. Also, do you want me to post on this thread?

“What I gave I have, what I didn’t give I’ve lost forever.” ~ Dan Devine

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Brent Pourciau USAW Certified
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July 26, 2012 – 1:12 pm
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Does this help?

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McHugh75
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July 26, 2012 – 1:16 pm
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Actually, no. I’ve never worked with a graph that contains 3 variables. Where would the Visual Velocity be plotted?

“What I gave I have, what I didn’t give I’ve lost forever.” ~ Dan Devine

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Brent Pourciau USAW Certified
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July 26, 2012 – 1:46 pm
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If you can figure out the math then this is what I had in mind. Height goes up as stride length goes out and visual velocity is recorded as either below 0mph or above. I started the numbers in bottom left corner. This is not accurate information.

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Brent Pourciau USAW Certified
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July 26, 2012 – 1:48 pm
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Now that I think about it the chart must represent a set velocity. For example it would be labeled as a 80mph chart. You could then calculate other charts for mid 80’s and then the 90’s

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McHugh75
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July 26, 2012 – 1:57 pm
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Wow! I’m completely lost. Instead of annoying you by asking ?’s about what you just said I’ll try something else. I think that it will just as effectively illustrate the point though.

“What I gave I have, what I didn’t give I’ve lost forever.” ~ Dan Devine

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