<![CDATA[The development of Augmented Reality (AR) technology provides significant opportunities to improve the quality of sports training, particularly in soccer, through more interactive and realistic strategy visualization. This study aims to design and develop an AR application as a visualization medium for soccer training strategies at the local AS Raemana soccer club, which faces limitations in strategy delivery through conventional methods such as whiteboards and verbal instructions, making it difficult for players to understand formations and game patterns in attacking and defensive situations. This study employed the Research and Development (R&D) method consisting of assessment, needs assessment, front-end analysis, design, development, implementation, and evaluation stages. The application was developed using Unity Engine and Vuforia SDK for Android, with key features including formation selection, strategy selection, marker scanning, and real-time 3D object visualization. Functional testing results showed that all application features operated according to the design and were declared valid. Based on a questionnaire administered to 21 respondents consisting of coaches and players of AS Raemana, all aspects received positive responses, with the percentage of respondents selecting “Strongly Agree” ranging from 61.9% to 100%, while the remaining respondents selected “Agree.” These results indicate that the application can help coaches deliver strategies more clearly and assist players in understanding formations, positions, movements, and game strategies in both attacking and defensive situations. This study contributes an interactive and innovative AR-based training medium that has the potential to support the improvement of tactical understanding and training quality in local soccer clubs.]]>
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