চিত্র:Baseball pitching motion 2004.jpg2004 . . Rdikeman (56798 bytes) (Pitcher's motion, Billy Wagner, Philadelphia Phillies, 9/15/2004, by Rick Dikeman) English Baseball pitching motion determination
চিত্র:Baseball sml.jpghttp://en.wikipedia.org/wiki/Image:Baseball_pitching_motion_2004.jpg , by Rdikeman, modified by Mats Halldin English determination method: SHA-1