Grey Prediction of Track & Field Results at the 28~( th) Olympic Games

Applying the method of modeling (GM 1,1) of the gray control system, the model for predicting track field results of each individual event at the 28th Olympic Games was established. Through modeling and comparative validation it was shown that since 1970s the modeling of track field results according to the sequence of number reflect the basic trends of the track field result development with good precision. On this basis the model of the results of the adjacent events according to the sequence of number was then established. The gray region of the track field results at the 28th Olympic Games was achieved, which provides theoretical basis and scientific reference for the decision-making departments concerned.