The Chinese never trailed and led 32-17 at the end of the first quarter after hitting 9 of 18 shots. They took their biggest lead at 53-26 after the second even with coach Xu Limin wearing a walking boot on his left foot and needing a wheelchair to leave the court for the locker room at halftime.
China padded the lead for a 71-39 edge after the third quarter on its way to the opening victory.
Li Meng scored 15 points for China. Han Xu added 11 points and a game-high 14 rebounds, while Pan Zhenqi had 11.
Pamela Rosado led Puerto Rico with 14 points. Jennifer O'Neill, who played in college at Kentucky, scored 13, and Isalys Quinones added 10.
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