Leaping? Or replanting?

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May 24, 2016
18
3
A crow-hop/replant is not allowed. This is the area that causes a lot of confusion. The uninformed think that a leap is a crow-hop. Some have even gone as far as to say that: "with all leaps there is a replant." And that is not the case, as with the WBSC interpretation.
A crop-hop is defined as a second impetus prior to the release of the pitch. Merely landing from a leap and releasing the pitch does not provide a second impetus. Most crow-hop violations are when the pitcher steps forward with the pivot foot prior to breaking their hands, thus "starting" the pitch from closer than 43' for women.
It is nearly impossible to crow-hop if you break your hands and begin your motion while the pivot foot is in contact with the pitcher's plate. I say "nearly" because it is uncommon and difficult bio-mechanically. Not to say it doesn't happen, just rare.
I recently attended a Clinic and out 30 umpires that were showed a video of a leap and I was the only one that said it was not a crow hop. I had to demonstrate to them the difference! I threw FP for 16 years internationally. It is impossible to crow off if you push off from the rubber when you start your pitching motion. Blues Leave it Alone!


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Jan 22, 2011
1,635
113
It is nearly impossible to crow-hop if you break your hands and begin your motion while the pivot foot is in contact with the pitcher's plate. I say "nearly" because it is uncommon and difficult bio-mechanically. Not to say it doesn't happen, just rare.
I recently attended a Clinic and out 30 umpires that were showed a video of a leap and I was the only one that said it was not a crow hop. I had to demonstrate to them the difference! I threw FP for 16 years internationally. It is impossible to crow off if you push off from the rubber when you start your pitching motion. Blues Leave it Alone!
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I agree 99pct of what many people think is a crowhop will be a legal leap. I just wanted a good explanation so I can explain the rules/whys to a coach who goes nuts after I call his pitcher illegal for stepping off the plate 3-6 inches before starting the pitch and say the other pitcher, who is leaping 5 feet off the pitching plate after the start of the pitch, is legal.
 
Jul 14, 2008
32
8
What does second impetus mean when referring to the landing of the pivot foot? First impetus is from the rubber. If any additional "force(second impetus)" is created by the pivot foot into the stride foot at landing, even if it is a more forceful weight shift, is that considered to be a second impetus as force has been increased?
 
Last edited:
May 13, 2023
1,538
113
What does second impetus mean when referring to the landing of the pivot foot? First impetus is from the rubber. If any additional "force(second impetus)" is created by the pivot foot into the stride foot at landing, even if it is a more forceful weight shift, is that considered to be a second impetus as force has been increased?
Your question is very important to consider. And why I copied blue 69 post.
Only looking at one foot may not be enough to Define.
*Merely Landing from a Leap and releasing the pitch does not provide a second impetus.

Do think there are people that see a pitcher leaping and Landing, release a pitch, and think they are seeing a Crow Hop, when it is not.

*Another area to analyze is hands separating.
Like Armwhip added to the conversation paying attention to the timing of the pitchers arm rotation...
Can start with those hands separating initiating pitching mechanic or can watch the pitcher carry the ball a little bit until they separate and start pitching.
( delaying when they are going to start their pitch in conjunction with possible replant)
Screenshot_20240125-062946_Chrome.jpg
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Last edited:
Nov 9, 2021
189
43
A crow-hop/replant is not allowed. This is the area that causes a lot of confusion. The uninformed think that a leap is a crow-hop. Some have even gone as far as to say that: "with all leaps there is a replant." And that is not the case, as with the WBSC interpretation.
A crop-hop is defined as a second impetus prior to the release of the pitch. Merely landing from a leap and releasing the pitch does not provide a second impetus. Most crow-hop violations are when the pitcher steps forward with the pivot foot prior to breaking their hands, thus "starting" the pitch from closer than 43' for women.
It is nearly impossible to crow-hop if you break your hands and begin your motion while the pivot foot is in contact with the pitcher's plate. I say "nearly" because it is uncommon and difficult bio-mechanically. Not to say it doesn't happen, just rare.
I recently attended a Clinic and out 30 umpires that were showed a video of a leap and I was the only one that said it was not a crow hop. I had to demonstrate to them the difference! I threw FP for 16 years internationally. It is impossible to crow off if you push off from the rubber when you start your pitching motion. Blues Leave it Alone!


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In the video the Op posted. The girl basically pauses the arm circle facing forward and then starts again once she lands again. I agree if the arm circle is continuous it would be hard to crow hop. What are your thoughts as an umpire on the video that started this discussion. That still seems like a crow hop to me even after reading your thoughts.


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