The rapid development of the China Open has heightened demands for optimizing ball kids' skills, which serve as critical operational support for tournament execution. However, China's ball kid system, with its relatively recent establishment and limited experiential accumulation, exhibits notable gaps compared to the century-old protocols of Grand Slam tournaments (Australian Open, French Open, Wimbledon, US Open). This study systematically compares skill characteristics between the China Open and Grand Slam ball kids to propose localized, efficiency-driven technical improvements. Method: Utilizing mixed methodologies—literature review, video analysis of 12 Grand Slam matches, comparative evaluation, and field interviews—the research evaluated five operational skills: stance, squat, signaling, passing to the players, and ball rolling. Observations from 2023 China Open operations were integrated with biomechanical principles and tournament-specific cultural contexts to formulate optimization strategies. China Open ball kids demonstrated fundamental competence in stance and signaling, yet required optimization in squat (leg sequencing, weight-bearing patterns) and court cushioning mat design. Key recommendations include: 1) standardizing squat with left-leg-forward support sequencing; 2) reducing mat thickness (1–2 cm) to minimize tripping risks; 3) retaining lateral-step passing for biomechanical efficiency; 4) diversifying training through tennis-specific core strength programs. Limitations include the unvalidated efficacy of proposed crouching modifications, requiring empirical validation through controlled biomechanical testing. Quantitative assessments of passing motion efficiency and practical evaluations of mat material innovations remain outstanding. Future research should incorporate motion capture validation and longitudinal performance tracking to strengthen theoretical foundations for China's ball kid development.
Ranxiao Xue (2026) studied this question.