Abstract: A baseball with a self-contained speed-measuring module positioned within a hollowed-out portion of the solid core of the ball, with the upper portion of the module being a display unit that indicates the speed at which the baseball was thrown over a fixed distance, the read-out of the display unit being visible from the outside to allow for the reading thereof. The module is enclosed in a single, unitary housing, and includes a computer chip. The chip includes speed-determining circuitry, and is made up of a programmable counter that counts down a plurality of times for every time interval of the flight of the thrown ball, the value representative of each time interval being loaded into the programmable counter by a programmable logic array, whose inputs are coupled to the outputs of a most-significant digit display counter of an LCD unit, the instantaneous value of which is representative of the time interval determined by the countdown rate of the programmable counter.