CHINA'S Wu Minxia splashed into the Olympic record books on Sunday, passing legends like American Greg Louganis and "big sister" Guo Jingjing as the most decorated diver in history.

Wu became the first person with five diving gold medals thanks to an easy victory with Shi Tingmao in the women's synchronized 3-meter springboard that kicked off the Rio Games competition and China's hopes of an eight-medal sweep.

"I'm really happy to get this medal. We all wished that the Chinese divers would have a good performance during the Olympic Games," Wu said at the Maria Lenk Aquatics Center.