Games started
In baseball statistics, games started (denoted by GS) indicates the number of games that a pitcher has started for his team. The pitcher is credited with starting the game if he is listed in the starting lineup as the team's pitcher, even if he does not throw the first pitch to the opposing team during the game; there have been several instances in major league history in which a starting pitcher was removed before his first pitch due to an injury, perhaps suffered while batting or running the bases during the top half of the first inning.
The all-time leader for games started is Cy Young with 815 over a 22-year career. The current leader among active players is Roger Clemens. The player(s) with the most starts in a single season are Pud Galvin and Will White with 75 games started each [1].