Talk:Gyroball

message: According to the Yahoo article I cited, the pitch usesijhiuggy a variation of the fastball grip, and in many of the videos of the Matsuzaka throwing his supposed gyroball he is using a much different grip. --Xenod 03:04, 31 July 2006 (UTC)
replies: text: Yes, Matsuzaka reckons his so-called gyroball is just a cut fastball or a slider, but Himeno 's opinion is different.Lesoleiletlalune 23:16, 1 May 2007 (UTC)
thread_title: Fastball grip

message: For what it's worth, I actually noticed a splitter-like sharp downward break when throwing a soft minature (slightly bigger than a baseball) football around the office a few years ago, and could consistently reproduce it when throwing tight spirals with good velocity.  Guess I was throwing gyros :) Thedangerouskitchen 06:44, 24 November 2006 (UTC)
thread_title: Office fun

message: The article describes what happens when a right-handed pitcher throws it.  Am I correct in assuming when thrown by a left-handed pitcher the movement of the ball is completely opposite (in terms of left/right)? -67.172.181.206 18:01, 28 June 2006 (UTC)
replies: text: Yes, precisely.Lesoleiletlalune 23:16, 1 May 2007 (UTC)
thread_title:  left hand pitcher 

message: Former New York Yankees pitcher Al Leiter was interviewed regarding the Gyroball, and said:
"They can call it what they want, but it's a cut fastball."
Mstyne 11:57, 23 October 2006 (UTC)
thread_title:  Cut Fastball? 

message: This sounds like a screwball to me? --Awiseman 20:33, 1 November 2006 (UTC)
thread_title:  Screwball? 

message: After reading a recent article on yahoo where the the actual creator of the gyroball is interveiwed, it appears that alot of the "knowledge" of the pitch is wrong. Including alot of the facts of this article.  
http://sports.yahoo.com/mlb/news;_ylt=Ah5LwrrFQ9RPhGeb62eSXA4RvLYF?slug=jp-mlb_07_gyroball022107&prov=yhoo&type=lgns 口The preceding unsigned comment was added by 24.72.134.29 (talk) 01:46, 23 February 2007 (UTC)
replies: text: Actually the article is not perfect, because it ignores Himeno's opinion. Besides, Japanese article says even Tezuka doesn't think he explained it to him so much enough. I don't think the gyro mystery is solved.Lesoleiletlalune 23:16, 1 May 2007 (UTC)
thread_title: New Facts? 

message: There are too many mischief and irresponsible edits recently...don't you think semi-protection is necessary?Lesoleiletlalune 23:16, 1 May 2007 (UTC)
thread_title:  semi-protected? 

message: I tagged this article as needing attention for tone due to the fact that it does not read well in English. The page has obviously been heavily edited or completely written by non-English speakers and it needs a tone edit badly. It also needs to be conformed to WP:MOS; I would help out with that at the moment but am backlogged with my WP:PHILLIES work. I will put it on my list, but that list is quite long. Someone else is really needed to help this article. KV5 • Squawk box • Fight on! 19:01, 31 May 2008 (UTC)
thread_title:  Tone Tag 

message: The following paragraph is from the video game appearances section. 
"In the video game MLB 07: The Show and the more recent The Bigs, only Daisuke Matsuzaka has the ability to throw the gyroball, although the movement of the pitch in the video game differs from the movement of the actual pitch. Daisuke Matsuzaka has himself stated, "looks like they are talking about my cut fastball or sinking slider. I guess sometimes it has a similar rotation of a gyro, when I fail to throw the cut fastball or the slider properly, but it is not exactly a gyro itself. It is different. There is a particular way of throwing it. I guess it is a kind of shuuto-like cut fastball". (However, in the long-lasting Japan-Baseball game series Jikkyō Powerful Pro Yakyū series, Daisuke is never given "Gyroball" ability for any installment, nor in the MLB Power Pros series installment.) It is an obtainable ability in the MLB Power Pros series, and its effect is to make the fastball look faster."
There needs to be some type of source for Matsuzaka's statements, because those statements seem to indicate that he can throw the gyro, but he has never stated he does as far as I know, and I have never heard of proof that he does.Tithonfury (talk) 18:21, 19 July 2009 (UTC)
thread_title:  Video game appearances 

message: I suggest that you start by defining this (or any pitch) objectively, in terms of these four vectors at release: rotation with respect to the ball seams, rotation with respect to earth frame of reference, velocity, and position.
I also recommend that in defining the pitch you initially ignore the actions of the pitcher which determine  these four vectors at release, because they have no effect whatsoever on the behavior of the ball, even though they may be of great importance because of how they affect the batter's perception.   
Let's assume right-handed pitcher, and take the direction from mound to plate as the positive x axis, mound to first base as positive y, and up as positive z.  This defines a right-handed Cartesian coordinate system.
The first vector is the rotation vector with respect to the ball.  It is best understood by considering the two extremes: four seam fastball, two seam fastball.  Every pitch is thrown with a vector somewhere between these two extremes.
The second vector is rotation with respect to earth. It is best understood by the five extreme cases.   Slider--close to the positive x axis;
Curve ball--close to the positive y axis but tilted toward positive z axis;
Fastball--close to the negative y axis;
Screwball--close to the negative z axis;
Knuckleball--close (in magnitude) to the zero vector.
The other two vectors are less important  but should be specified if you think they are important.  Together, these two vectors determine where the ball would cross the plate, at what angle, and how fast, if the ball didn't curve in any direction, except for the acceleration due to gravity.
This framework will immediately and conclusively resolve your controversy about whether or not this is a real pitch. If a distinct set of vectors (different from any other pitch) can be given, then it is a distinct pitch.  If not, it is not.
Mark.camp (talk) 02:33, 23 October 2009 (UTC)
thread_title: A proposed way of describing the gyroball

message: The subject of this article is the gyroball.  An article on the gyroball must start with a statement of what a gyroball is.  Currently, there is no definition. Could someone provide it?
Mark.camp (talk) 03:48, 12 December 2009 (UTC)
thread_title:  Need definition 

message: The introductory sentence in an article on the gyroball should state what a gyroball is.  Currently the first sentence does not do this.  Could someone rewrite the first sentence? Mark.camp (talk) 01:24, 25 June 2010 (UTC)
thread_title:  Introductory sentence 

message: This link  is from the Baseball Research Journal, if it's of use to anyone trying to improve this article. Woodshed (talk) 20:27, 1 May 2013 (UTC)
thread_title:  Ref 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: Ken Giles of the Astros throws a slider that is very close to being a true gyroball. Giles' slider has less than half an inch of horizontal and vertical spin deflection, according to Brooks Baseball. Another pitcher for the Astros, James Hoyt, throws a slider that has the smallest amount of horizontal and vertical spin deflection of any slider (.13 inches horizontal, .02 inches vertical), according to Brooks Baseball. So far as I can tell, he throws the closest thing to a true gyroball of any major-league pitcher. Both of these pitchers have spin rates in excess of 2000 RPMs on their pitch, according to Statcast, so it's not the lack of movement isn't attributable to a lack of spin. It's just that almost all of the spin is gyrospin.  — Preceding unsigned comment added by Dguidi2528 (talk • contribs) 20:39, 19 September 2016 (UTC)
thread_title:  Potential Gyroballers 

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thread_title:  External links modified 

message: I recently added a more in-depth description of the pitching method and mechanics for the Gyro and also cleaned up some other things (Like someone leaving in that the Gyroball has break). I included Tezuka's claim that it can only be thrown by sidearm or sub-mariner delivery. Even though I have my own theories of how it can be done with the overhand approach, aa well as a better gripping technique, both based on the  technique for throwing a perfect spiral with a football. Which, alas, would be Original Research, without references. 
Also, despite Tezuka stating that "the hands aren't important,"  how the ball is held is very important, as is stated in the reference. It must be gripped in the exact middle, with an "appropriate amount of pressure."An Analysis of the Gyroball. Alan Nathan and Dave Baldwin, "An Analysis of the Gyroball."  
I also found out through reading references about other pitches that Kunckballs, especially those of R.A. Dickey, have a side-to-side rotation just like the Gyro. It provides evidence that bullet spin is possible. Its extremely low rpm's and slow velocity gives the Knuckleball its erratic trajectory.Anatomy of a Really Nasty Pitch Alan M. Nathan, "Anatomy of a Really Nasty Pitch" It seems evident that it is the Gyroball's  like-but-opposite "evil" twin. Just like a bullet, a ball with side-spin that has high rpm's makes its flight have the stabilization required for a straight trajectory, i.e. The Gyroball 
Thought I would provide a report on my recent editing efforts in this article. Persistent Corvid (talk) 03:42, 30 May 2018 (UTC)
thread_title:  Gyroball mechanics and the Gyroball's evil twin, the Knuckleball 

message: Comparison in speed to 4 seam fastball and 2 seam fastball.
Years ? The pitch seems rather contemporary but there is not a single year in the article. Setenzatsu (talk) 17:53, 3 July 2019 (UTC)
thread_title:  Years missing and speed comparison