Circle changeup the index finger on the seam of the ball and the thumb on the side of the ball to "choke" the ball. According to his autobiography, Nolan Ryan also developed his own circle changeup to add another off-speed pitch without having to throw a slider (as sliders are believed to more frequently cause injuries). Circle changeup In baseball, a circle changeup is a pitch thrown with a grip that includes a circle formation, hence the name circle changeup. The circle is formed by making a circle with the index finger, holding the thumb at the bottom of the ball parallel
Bob Feller However, this took place in the later years of his career and the speed of the ball was measured as it crossed the plate (whereas later methods measure the speed as it leaves the pitcher's hand). With primitive equipment Feller was at one point measured at . Feller once mentioned that he was clocked at at Lincoln Park in Chicago. He also threw the second fastest pitch ever officially recorded, at , in a game in 1946 at Griffith Stadium. Feller said a 1974 test involving Nolan Ryan would be evaluated when he threw the ball rather than when it