Methods: Using marker analysis, mark the batting position slots and batting drop points of all techniques, then use the decision tree analysis Classification and Regression Tree algorithm (CART), analyze the resulting data, and model the tennis player's forward-shooting technique sitin in the game to learn about Roger Federer and Rafael Nadal's batting habits and advantages and disadvantages. Result: Rafael Nadal had one more drop point than Roger Federer in scoring, and the third-highest error in the right shot was standing 4, and roger Federer's counter-attack, which had been a backhand, was a relative increase in error rates due to differences in his hands. CONCLUSION: Roger Federer increased the error with a flash shot, Rafael Nadal's forward shot increased the score through a large angle, Rafael Nadal's forward shot was greater than the score, and Roger Federer's loss was greater than the score.
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