축구 경기력 요인의 포지션별 차이분석과 가중치 적용

Abstract

This research is aimed to proposing a player evaluation model that can be used in the field by analyzing actual game and applying the data based on methodology to evaluate the performance of soccer players. For this purpose, the following result are obtained by applying the factors and weights shown in the research conclusion of Hong Sung-jin (2017) to actual analysis data. First, the difference analysis results by each position for attack power (score, assist) show differences in scoring, not in assists. Assist can be seen as contributing to scoring in all different positions, regardless of position. Second, the analysis of differences in positions about basic skills (shooting, passing, and dribbling) all shows statistical differences. The post-verification test show no differences between a forward and a midfielder in shooting. In other words, a forward and midfielder can be considered the same position in shooting. In the pass, the team show up in order as a defender, midfielder, and striker. In dribbling, player tries a lot in order as a striker, midfielder, and defender. Third, the analysis of differences in positions of defense (tackle, interceptor, clearing and block) show statistical differences in tackle, clearing and block, and no difference in intercept. Look at the post-verification test, there are no differences between a forward and a midfielder in tackle, clearing and block. In other words, It can be considered as same position. In the meantime, it was concluded that the intercept is working in all positions. Fourth, the analysis of the difference by position in contribution (air ball competition, secondary ball acquisition) showed a statistical difference in the air ball competition, and the second ball has no difference. In particular, the midfielders were the lowest, strikers trying the most air ball competition. As a result Every position tries to take a second ball. Fifth, after analyzing the total score with applying weights, midfielders show highest score. The score of offense defence occupied highest possesion, followed by the forward. In other words, the team could be analasys that used wingback's overlapping or cross a lot. In terms of basic skill, defense, and contribution, midfielders all conclude high scores. It can be seen as the basis for showing the level and importance of midfielders in university football.