Group 1 - The 15th National Games men's basketball adult group competition commenced, with teams such as Tianjin, Liaoning, Shanghai, Sichuan, Zhejiang, and Guangdong securing their first victories [1] - The competition format includes a "round-robin group stage + crossover knockout" system, with 14 teams divided into three groups, where the top two from each group and the two best third-placed teams advance to the quarter-finals [1] - Macau men's basketball team, participating for the first time, lost to Tianjin with a score of 63:109, facing significant challenges in physicality and tactical execution, resulting in 16 turnovers and a rebounding deficit of 27 to 48 [1] Group 2 - In a key match, Guangdong defeated Shandong 87:71, establishing themselves as championship favorites with a roster featuring prominent players like Zhao Rui and Hu Mingxuan [2] - Despite poor outside shooting, Guangdong leveraged their depth and maintained defensive pressure, with Zhao Rui scoring 13 points in the third quarter to widen the lead [2] - Guangdong's head coach Du Feng noted the team's performance was satisfactory for their first match with the current lineup, highlighting the need for further coordination and the positive impact of facing strong competition from Shandong [2]