All main league baseball knowledge together with pitch sort, velocity, batted ball location,
and play-by-play knowledge offered by Sports activities Information Options.
Main League and Minor League Baseball knowledge offered by Main League Baseball.
All UZR (final zone score) calculations are offered courtesy of Mitchel Lichtman.
All Win Expectancy, Leverage Index, Run Expectancy, and Followers Scouting Report knowledge licenced from TangoTiger.com
Play-by-play knowledge previous to 2002 was obtained freed from cost from and is copyrighted