We Specialize in: Collecting, Interpreting and Disseminating in-depth baseball statistics.


Each year, SIS produces The Bill James Handbook, a comprehensive collection of unique and fascinating baseball data.  The Handbook contains a wide variety of information from every facet of the game, including relief pitching, baserunning, advanced fielding, managing, instant replay, stadium analysis, and pitcher repertoire.

The multi-volume series of The Fielding Bible has produced some of the most important research on fielding the sport has ever seen. It has introduced Good Fielding Plays & Defensive Misplays, Defensive Range & Positioning, and the eight components of Defensive Runs Saved

Recent innovations include the introduction of command charting, the batted ball timer, and groundbreaking research on defensive shifts.