Research on marathon performance prediction based on Markov mathematical model

The marathon has made China's track and field sports more international and healthier. The marathon in the Olympic Games is an important project for China to follow and vigorously develop track and field sports. To this end, scientifically predicting the achievements of the project can help our marathon coaches to more objectively analyse their development trend and formulate scientific control policies. Based on this background, the paper combines the volatility and randomness of the marathon's best scores, and establishes a marathon performance prediction system with Markov mathematical model, which provides a reference for the coach to develop a scientific training program.