China's Guo Jinjing said she would try to compete at the London 2012 Olympics after sealing her fifth straight three-meter springboard gold at the world championships on Tuesday. But compatriot Qiu Bo failed to fully re-establish China's superiority after a wobbly start to the championships when he lost out to British 15-year-old Tom Daley in the men's 10m platform final. Guo, who has scooped more Olympic golds than any other female diver, led throughout the final and racked up an overall score of 388.20 from her five dives in the blistering heat. She has also won gold in the 3m synchronized event in the last four world championships and is poised to target another one in Friday's final at Rome's Foro Italico. Canada's Emilie Heymans snatched silver in the individual competition while third-placed Italian Tania Cagnotto gave the host nation its first medal of the world aquatics championships to the delight of a success-starved crowd. Qiu's failure on his final dive handed the title to Daley. The Briton, his country's youngest competitor at the Beijing Games, seized gold after receiving eight 10s from the judges across his last two dives. China's Zhou Luxin took bronze. Earlier Thomas Lurz won his third consecutive 5-kilometer title in open water swimming, and Melissa Gorman of Australia edged Olympic champion Larisa Ilchenko in the women's race. Lurz beat Spyridon Gianniotis of Greece by about a body length in the open sea course off Rome's ancient port of Ostia. Lurz won in 56 minutes, 27.2 seconds. Gianniotis was 0.3 seconds behind, and Chad Ho of South Africa took third, 15 seconds back. Gorman's winning time - 56:55.8 - wasn't far off Lurz's. Ilchenko took the silver medal, 0.5 seconds behind, and Poliana Okimoto of Brazil was third, 3.5 seconds back. In synchronized swimming, Anastasia Davydova and Svetlana Romashina of Russia won the technical duet. Swimming to the notes of Gioachino Rossini's “Figaro,” Russia was awarded 98.667 points. The Spanish pair of Andrea Fuentes and Gemma Mengual finished second with 97.333 points, and Chinese twins Jiang Tingting and Jiang Wenwen finished third with 85.667. Davydova won gold in duet at the last two Olympics with Anastasia Ermakova.