Measurements of particle motions were obtained using a manual tracking method within the program ImageJ. The data include 1250 frames or 5 seconds of high-speed imagery, associated coordinates of particle motions, and derived measurements of particle motions (e.g. instantaneous velocities, particle accelerations, hop distances, and travel times). These are associated with figures posted in this file and also within our paper ''Experimental evidence of statistical ensemble behavior in bed load sediment transport'', DOI: 10.1002/2015JF003552.