Should David Ortiz appear tonight for the Red Sox against the Yankees at Fenway Park as the designated hitter, and by all accounts he will, he will set a new Major League Baseball record for most appearances as a DH with 1644 games, surpassing former slugger Harold Baines. Ortiz already holds the record for most starts in league history by a DH with 1625, well ahead of Baines at 1565 starts.
Big Papi is far and away the leader in most offensive categories as a designated hitter: most plate appearances (7188), most hits (1779), most doubles (450), most home runs (385), and most RBI (1256). Counting only players with at least 2000 plate appearances as a DH, his OPS of .941 ranks second to Edgar Martinez (.959).
Not surprisingly, Ortiz is far and above the leader in franchise history.