total player rating

an overall measure of a player's ability in comparison to other players at the same position, based on the number of runs contributed by batting, or opponent's run's prevented by pitching or fielding; developed by sabermetrician Pete Palmer and was popularized in the Total Baseball series of encyclopedias during the 1980s.Total player rating (TPR) is a metric for measuring the value of baseball players, and to enable players to be compared against each other even when they played for different teams, at different positions, and in different eras. It was