A training device is disclosed particularly adapted to assist a baseball pitcher in developing accuracy and controlling the velocity of his pitches. The device provides an adjustable strike zone comprising a real catcher's mitt. A velocity meter that records the actual velocity of the pitched ball is an additional feature. Also, there is a net and frame apparatus that stops pitches, including a trough to collect pitched baseballs. The entire apparatus is portable, and can be disassembled and reassembled at any desired site.