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
Speed record Speed record A speed record is a world record for speed by a person, animal, or vehicle. The function of speed record is to record the speed of moving animate objects such as humans, animals or vehicles. Overall speed record is the record for the highest average speed regardless of any criteria, categories or classes that all the more specific records belong to, provided that the route was completed. It helps to compare various performances that differ by the type of the craft, vessel or vehicle, the departure and the arrival points (provided that the distances are comparable), number, age