<![CDATA[Junior tennis development requires coaching that integrates technical precision with tactical adaptability under controlled and variable playing conditions. This descriptive-evaluative community engagement program involved 20 junior tennis athletes aged 10–16 years in the Special Region of Yogyakarta, Indonesia, during July 2026. Eight sessions were organized into adaptation, formation, improvement, and consolidation phases. Ball-machine exercises provided repeatable feeds for forehand and backhand practice, while coach- or partner-fed drills, footwork, shadow swings, and restricted games supported movement preparation and tactical application. Training loads progressed from 4 × 8 to 6 × 12 repetitions, with rest intervals decreasing from 60 to 40 seconds and relative intensity ranging from 50% to 70%. All eight scheduled sessions were completed, yielding 100% program implementation. Technical observations addressed ready position, contact point, follow-through, directional placement, positional recovery, attacking variation, and point completion during simulated play. The program documented structured integration of mechanical repetition and interactive practice and produced training guidelines and monitoring instruments for coaching. Individual pretest and posttest scores were not validated, preventing quantitative estimates of improvement or causal conclusions about effectiveness. The integrated model offers a practical framework for junior coaching, although validated athlete-level assessments remain necessary to establish changes in accuracy and attacking effectiveness. ]]>
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