The present invention is a system for automatically controlling and assessing a user athlete's physical training prowess at certain athletic skills. An apparatus of the present invention can be a treadmill sled having a frame, a rotatable continuous belt mounted on the frame, the belt presenting an upward directed support surface for supporting a user athlete, a training apparatus, and a performance measuring system. The training apparatus can include a blocking dummy and support frame, or a tether frame support system. Further, the performance measuring system can include programmable and automated control of the timing, duration, and scope/level of the physical training, and present quantitative assessment feedback to better maximize the applicable training regime, and to simplify the training sessions for supervisory personnel as well as the participating athlete(s).