Wins Above Replacement is one way to measure the performance of baseball players. It happens to be excellent at evaluating the contribution of players to the success of their team.
Known as WAR, Wins Above Replacement can tell us which players at any position were most valuable.
In the 1990s, many MLB players had tremendous success. These players combined excellent hitting with fielding, base running, and overall play.
The highest WAR for the 1990s was from Barry Bonds with 80.1 bWAR (Wins Above Replacement according to Baseball Reference).
