Group 1 - The 15th National Games showcases vibrant competitions among athletes from Guangdong, Hong Kong, and Macau, highlighting the collaborative spirit and energy of the Greater Bay Area [8] - The event provides a unique opportunity for young athletes to gain experience and learn from high-level competitors, as emphasized by coach Wu Di of the Shanghai tennis team [10] - The Guangzhou Sports Academy has upgraded its facilities for the event, demonstrating a commitment to hosting high-quality competitions and enhancing the sports environment [11] Group 2 - Volunteer participation in the event reflects a growing interest in sports and community engagement, as seen with retired accountant Zhang Jihong, who actively contributes to the event [13][14] - The event has fostered closer ties between Hong Kong and mainland China, with increased participation and support for sports initiatives [14] - Macau's table tennis player Zheng Kongwei expresses pride in competing at home, highlighting the importance of local support and the growing sports culture in Macau [15]