Psychophysiological computer tests are widely accepted in sports science, because they are fast and not expensive. In this study, a new program for computer testing is presented which allows us to find the average reaction time of a sportsman in different directions and estimate his/her reaction symmetry coefficient. On the basis of these parameters recommendations to coaches and sportsmen are given for the future training. The main feature of the program is its design perfectly fitted into reality which contributes to more effective and persistent changes in the reaction skills of a sportsman. On the example of a group of ten 17-19 year old sportsmen with low-medium qualification the improvement of choice reaction time by 10% on the average is demonstrated onemonth after a special training including the computer tests for about 10-15 minutes daily. The method has proved to be effective for improving sportsmen's reaction, attention, concentration, coordination and peripheral vision and should be taken by athletes regularly to develop fine motor skills. Tests for other sports, like basketball, handball and rugby are also included.