A computer-implemented method for determining a rating of an athlete comprising: initiating a first trigger , the first trigger configured to indicate to an athlete to initiate performance of a predefined physical activity; responsive to initiating the first trigger, initiating capturing a plurality of sequential images with a first camera ; determining a first image, within the plurality of sequential images, that correlates to a timing of the initiating of the first trigger; automatically associating a trigger flag with the first image ; processing a plurality of sequential images to identify an initiation image, comprising: identifying pixels in the plurality of sequential images that correspond to a specific first body portion of an athlete , wherein the first body portion is selected based upon the predetermined physical activity the athlete is to perform; and determining, based upon the identified pixels, whether the pixels are altered between a plurality of images within the sequential images such that the alteration satisfies a first body portion movement quality criterion ; identifying a respective one of the plurality of images as the initiation image based on the first body portion movement quality criterion being first satisfied in the plurality of sequential images with respect to the respective image ; utilizing the initiation image in a determination of at least one performance attribute of the athlete, wherein the performance attribute is a reaction value for the athlete based upon a duration between the first image and the initiation image ; and calculating a rating of the athlete based on the reaction value. initiating a first trigger , the first trigger configured to indicate to an athlete to initiate performance of a predefined physical activity; responsive to initiating the first trigger, initiating capturing a plurality of sequential images with a first camera ; determining a first image, within the plurality of sequential images, that correlates to a timing of the initiating of the first trigger; automatically associating a trigger flag with the first image ; processing a plurality of sequential images to identify an initiation image, comprising: identifying pixels in the plurality of sequential images that correspond to a specific first body portion of an athlete , wherein the first body portion is selected based upon the predetermined physical activity the athlete is to perform; and determining, based upon the identified pixels, whether the pixels are altered between a plurality of images within the sequential images such that the alteration satisfies a first body portion movement quality criterion ; identifying a respective one of the plurality of images as the initiation image based on the first body portion movement quality criterion being first satisfied in the plurality of sequential images with respect to the respective image ; identifying pixels in the plurality of sequential images that correspond to a specific first body portion of an athlete , wherein the first body portion is selected based upon the predetermined physical activity the athlete is to perform; and determining, based upon the identified pixels, whether the pixels are altered between a plurality of images within the sequential images such that the alteration satisfies a first body portion movement quality criterion ; identifying a respective one of the plurality of images as the initiation image based on the first body portion movement quality criterion being first satisfied in the plurality of sequential images with respect to the respective image ; utilizing the initiation image in a determination of at least one performance attribute of the athlete, wherein the performance attribute is a reaction value for the athlete based upon a duration between the first image and the initiation image ; and calculating a rating of the athlete based on the reaction value. <EOS>