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From Wikipedia, the free encyclopedia

A screwball is a baseball and fastpitch softball 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. The pitch is sometimes known as the scroogie or airbender.

Carl Hubbell was one of the most renowned screwball pitchers in the history of Major League Baseball.[1] Hubbell was known as the "scroogie king" for his mastery of the pitch and the frequency with which he threw it. Other famous screwball hurlers include Tug McGraw, inaugural Hall of Fame member Christy Mathewson, and Cy Young Award winners Mike Cuellar, Fernando Valenzuela, Mike Marshall, and Willie Hernández.

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Grip and action

The grip used for a screwball

The baseball is held with the open end of the horseshoe shape (where the seams are closest together) facing upward. The thumb is placed just beneath the bottom of the horseshoe, the index finger is curled against the top of the thumb, forming a tight circle to the side of the ball. The middle finger is then placed on the top of the ball and grips against the top seam, (the seam closest to the index finger). The ring finger is placed outside the other top seam loosely and the pinky is held on the side opposite the thumb; all fingers are spread apart. The grip is similar to the circle changeup,[2] but with different placement in regards to the seams.

Also, unlike the Circle change, when throwing the screwball the middle finger applies the most pressure to the baseball, while the ring and pinky exert no pressure at all. For left-handed pitchers, as the middle finger presses hard down on the ball, their hand pronates (turns) inwardly in a clockwise manner near the end of the pitching motion, until much of the hand is beneath the ball. Conversely, right-handed pitchers turn their hand counter-clockwise.[3]


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.[citation needed] If thrown correctly, the screwball breaks in the opposite direction of a curveball.

Notable screwball pitchers

One of the first great screwball pitchers was Christy Mathewson, who pitched for the New York Giants 1900–1916, whose pitch was then labeled as the "fadeaway". Major league pitchers who have thrown the screwball during their careers include:

Contrary to popular belief, the screwball is not particularly stressful on a pitcher's arm.[12] The pronation of the forearm allows for the protection of the ulnar collateral ligament, which is replaced during Tommy John surgery.[citation needed]


  1. ^ "Carl Hubbell". Retrieved October 7, 2015.
  2. ^ Ellis, Steven. "Pitching Grips".
  3. ^ Schoenfeld, Bruce (July 10, 2014). "The Mystery of the Vanishing Screwball". The New York Times.
  4. ^ "Hubbell Out For Season", New York Times, August 24, 1938, pg. 26.
  5. ^ "Blanton, Pirates, Stops Dodgers, 8-2", New York Times, May 19, 1935, pg. S5.
  6. ^ "Arroyo: Artist of Yankee Bullpen", New York Times, August 21, 1960, pg. S2.
  7. ^ "Orioles Get Baldschun of Phillies", New York Times, December 7, 1965, pg. 61.
  8. ^ "Shrine of the Eternals 2006 Induction Day Photos". July 23, 2006. Archived from the original on September 29, 2013. Retrieved November 7, 2012.
  9. ^ "Roundup: Cuellar Holds Showing of Old Art Form", New York Times, June 12, 1970, pg. 43.
  10. ^ "The Herrera Screwball". Fox Sports. Retrieved November 7, 2012.
  11. ^ "Unheralded Braden keeps making us believe this is his defining year". Sports Illustrated. May 10, 2010.
  12. ^ Schoenfeld, Bruce (July 10, 2014). "The Mystery of the Vanishing Screwball". New York Times.
This page was last edited on 8 May 2024, at 00:36
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