SHANGHAI -- China collected two gold medals and four silver medals as well as one Asian record at the IAAF Diamond League series in Shanghai on Saturday.

Lyu Huihui successfully defended her javelin throw title while Wang Yu pulled off the men's high jump victory as he promised before the competition.

China's top sprinter Su Bingtian just finished 5th in men's 100m race but clocked 10.05 seconds to meet the entry standard for the 2020 Tokyo Olympic Games.

Lyu, 2017 world championships bronze medalist, improved her own meet record set last year by 4cm to lift the victory in 66.89 meters.

"I still have room for improvement on today's 66.89m. I will adjust myself and get well prepared for the Doha World Championships," said Lyu.

Lyu, 29, got her season off to a promising start as she just recorded her personal best of 67.72 meters in April's National Athletics Grand Prix series in Huangshi, Hubei province en route to set a new Asian record.

Latvia's Lina Muze, 26, took silver in 64.87 while Germany's Christin Hussong, 2018 European champion, was third in 64.10.

The 27-year-old Wang proved he is a man of his words as he created a season best of 2.28 meters to take the high jump victory.