ESPN.com - Gammons: Just the facts:
"Pedro Martinez leads all active pitchers in career ERA, winning percentage, lowest opponents' batting average, fewest baserunners per nine innings, lowest opponents' on-base, slugging and OPS. He has held opponents in his career to a .583 OPS -- which means every batter he has faced is slightly less dangerous than Cesar Izturis, whose career OPS is .589."