| The Super League is the professional football league with the highest competitive level in China.The resources from all walks of life have invested heavily in it,and the overall development trend is steadily moving forward.However,there is still a big gap between the comprehensive technical and tactical level and the world football powers.Drawing on the convenience of big data development,this paper explores the comprehensive offensive and defensive capabilities of the top 16 teams in the Super League in 2021 and sorts them,understands the competitive pattern of the Super League,finds the key factors of the stratification of offensive and defensive capabilities of teams of different grades,and analyzes the advantages and disadvantages of the 16 teams at both ends of the offensive and defensive,so as to achieve relative scientificity in training and material selection;Promote the integration of sports competition analysis and competition practice.In this paper,the main methods such as literature review,video observation and TOPSIS-RSR are used to sort and rank the offensive and defensive performance of 16 teams in the Super League in 2021,so as to realize the comprehensive evaluation and analysis of 16 teams.Research results:(1)The offensive and defensive ability of a team is a comprehensive reflection of the strength of a team,which is closely related to the development of the team,the competition environment,the physical fitness of players and other internal and external environments.(2)Eighteen offensive and defensive technical indicators,such as goal,assist,forward pass,ball control rate,frontcourt 30 m pass,forward pass success rate,shot,shot scoring rate,cross,key pass,corner kick,frontcourt 30 m pass success rate,fumble,clearance,shot,shot scoring rate and tackle,are significantly related to the competition score.(3)In terms of comprehensive offensive and defensive strength,the offensive and defensive Ci values of Guangzhou,Shanghai Harbor and Shandong Taishan are all greater than 0.880.The offensive and defensive Ci values of five teams,including Shanghai Shenhua,Changchun Yatai and Beijing Guoan,are all around 0.50.The offensive and defensive Ci values of the other eight teams,including Longmen in Songshan,Cangzhou Lions and Hebei,were all below 0.345.(4)Combining with the best grading,the offensive and defensive abilities of 16 teams are divided into three grades.Guangzhou,Shanghai Harbor and Shandong Taishan are the first teams;Ten teams including Shanghai Shenhua,Shenzhen and Changchun Yatai are divided into the second file.Tianjin Jinmen Tiger,Chongqing Liangjiang Athletic and Qingdao are divided into the third gear.(5)There are significant differences in 10 offensive and defensive technical indexes such as goals,shooting scores,assists,30-meter passing in the frontcourt,forward passing success rate,fumble,clearance and tackle.Research conclusions:(1)TOPSIS-RSR method can scientifically and objectively evaluate the team’s comprehensive offensive and defensive ability,and rank it reasonably,reflecting the team’s offensive and defensive characteristics,which has certain reference value for analyzing the competition pattern of Chinese Super League teams in 2021.(2)The ranking of comprehensive offensive and defensive ability is consistent with the final game result.Different teams have their own areas of expertise in offensive and defensive aspects.The better the team’s performance,the stronger its offensive and defensive ability and the more balanced the offensive and defensive ends.(3)In the first team,the offensive and defensive abilities are relatively balanced and the overall level is the highest;In the second gear,Beijing Guoan has a balanced attack and defense,and its overall strength is good.The other nine teams have the problem of unbalanced attack and defense;The third team has unbalanced attack and defense and poor overall attack and defense ability.(4)The higher the grade,the better the key technical indexes of attack and defense.(5)The traditional Super League teams have stable resources to maintain the team’s operation and have more stable competition performance.Clubs tend to introduce foreign aid in key offensive and defensive positions to enhance their offensive and defensive capabilities. |
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