China finished third in the women's 4x100m relay with 42.71 seconds at the London leg of the IAAF Diamond League on Saturday. 

Two-time Olympic champion and seven-time world titlist Shelly-Ann Fraser-Pryce outsprinted Britain's Daryll Neita in the last second to earn Jamaica the title.  

Jamaica beat Britain by one-hundredth second with a time of 42.29.  

Meanwhile, South Africa's 25-year-old Akani Simbine clocked a season best time of 9.93 seconds for men's 100m title. 

"I'm really happy with the time," Simbine said. "It's mostly about building the confidence and making sure I get through the races and winning them so by the time I get to the Doha World Championships I will be ready and the confidence will be there." 

Britain's Zharnel Hughes finished second in 9.95 and Jamaica's two-time Olympic champion Yohan Blake was third in 9.97. 

Yuki Koike became the third Japanese sprinter to run under 10 seconds as he finished fourth in a personal best of 9.98 seconds.  

Jamaica's Elaine Thompson, who won both 100m and 200m at the Rio Olympics, won the women's 200m title in 22.13 seconds, followed by Marie-Josee Ta Lou of Cote d'Ivoire and Britain's Beth Dobbin. 

"I'm feeling great to be back in London," Thompson said. "I came out here and pulled through today. I think there's great strength in the 200m fields and I feel like it's helping me continually improve." 

Norway's Karsten Warholm, who won the championship in the 2017 worlds, took the men's 400m hurdles in a personal best of 47.12 seconds and Kenya's Ferguson Cheruiyot Rotich won the 800m race in 1:43.14. 

Jamaica's Danielle Williams soared to seventh on the all-time list finishing in 12.32 seconds in the 100m hurdles. 

Hagos Gebrhiwet of Ethiopia held off Jakob Ingebrigtsen of Norway during the final lap to win the men's 5000m.