screwball

　 　

WordNet

1. a pitch with reverse spin that curves toward the side of the plate from which it was thrown
2. (baseball) a pitcher who throws screwballs

PrepTutorEJDIC

1. 《米語》変人,奇人 / (野耕で,カーブと反対に曲がる)スクリューボール

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/06/01 23:35:09」(JST)

wiki en

[Wiki en表示]

This article is about the baseball pitch. For other uses, see Screwball (disambiguation).

A screwball (also known as the screwgie), is a baseball pitch that is thrown so as to break in the opposite direction of a slider or curveball. Depending on the pitcher's arm angle, the ball may also have a sinking action.

Carl Hubbell was one of the most renowned screwball pitchers in the history of Major League Baseball. Hubbell was known as the "scroogie king" for his mastery of the pitch and the frequency for which he threw it. Other famous screwball artists included Cy Young Award winners Mike Cuellar, Fernando Valenzuela and Mike Marshall.

Effects

When thrown by a right-handed pitcher, a screwball breaks from left to right from the point of view of the pitcher; the pitch therefore moves down and in on a right-handed batter and down and away from a left-handed batter. When thrown by a left-handed pitcher, a screwball breaks from right to left, moving down and in on a left-handed batter and down and away from a right-handed batter. Due to this left-to-right movement of the ball (when thrown by a right-handed pitcher), right-handed pitchers use a screwball against left-handed batters in the same way that they use a slider against right-handed batters.

Pitchers

One of the first great screwball pitchers was Christy Mathewson (1900–1916), whose pitch was then labeled as the 'fadeaway'. Other major league pitchers who have thrown the screwball during their careers include:

• Carl Hubbell
• Cy Blanton
• Luis Arroyo
• Jack Baldschun
• Bobby Castillo (taught the pitch to Valenzuela)
• Mike Cuellar
• Warren Spahn (in the second half of his career)
• Jim Brewer
• Rich Folkers
• Clark Griffith
• Mel Parnell
• Mike Norris
• Juan Marichal
• Mike Marshall
• Masanori Murakami
• Fernando Valenzuela
• Teddy Higuera
• Tom Browning
• Tug McGraw
• Willie Hernández
• Jim Mecir
• Pedro Martínez
• Jeff Sparks
• Daniel Ray Herrera
• Dallas Braden
• Yoshinori Tateyama
• Hector Santiago
• Paul Byrd

Contrary to popular belief, the screwball is not particularly stressful on a pitcher's arm. The pronation of the forearm allows for the protection of the ulnar collateral ligament, which is replaced during Tommy John surgery.

References

English Journal

• Describing baseball pitch movement with right-hand rules.

• Bahill AT, Baldwin DG.SourceSystems and Industrial Engineering, University of Arizona, Tucson, AZ 85721-0020, USA. terry@sie.arizona.edu
• Computers in biology and medicine.Comput Biol Med.2007 Jul;37(7):1001-8. Epub 2006 Nov 7.
• The right-hand rules show the direction of the spin-induced deflection of baseball pitches: thus, they explain the movement of the fastball, curveball, slider and screwball. The direction of deflection is described by a pair of right-hand rules commonly used in science and engineering. Our new model
• PMID 17094959

Japanese Journal

• 教育実習授業中に見られる「変化球」

• 富田 晃彦
• 和歌山大学教育学部教育実践総合センター紀要 21, 157-160, 2011-09-30
• NAID 110008690251

• ローラ式ピッチングマシンの投球シミュレーションとその最適化に関する研究(機械力学,計測,自動制御)

• 酒井 忍,北河 勇一郎,金井 亮 [他],尾田 十八
• 日本機械学會論文集. C編 74(748), 2864-2869, 2008-12-25
• … Pitches such as the fastball, curveball and screwball are easily achieved by the pitching machine with three rollers which were developed by the authors. …
• NAID 110007008091

• A Study on Throw Simulation for Baseball Pitching Machine with Rollers and Its Optimization

• 酒井 忍,北河 勇一郎,金井 亮,尾田 十八
• 日本機械学会論文集 C編 74(748), 2864-2869, 2008
• … Pitches such as the fastball, curveball and screwball are easily achieved by the pitching machine with three rollers which were developed by the authors. …
• NAID 130004236911

Related Links

• SCREWBALL LEGO WEBSHOP

スクリュウボール レゴ ウェブショップ 日本未発売レゴ・レゴ新商品・レア物レゴ・レゴグッズを販売しております 商品価格は消費税込みのお値段です クロネコヤマト便送料 北海道内：600円

• Screwball | インターネット内の検索結果 | cyclopaedia.net

ウィキペディアの英語版でScrewballという用語が挙げてありますが、そこでは、以下の意味で使われています。A screwball (also known as the screwgie), is a baseball pitch that is thrown so as to break in the opposite direction of a slider or ...

Related Pictures