WORLD champion Helen Jenkins could only manage sixth at the rearranged World Championship Series triathlon in Yokohama today.

The Welshwoman clinched the world title with a second-placed finish in the Grand Final in Beijing last weekend but struggled with the heat and humidity in Yokohama, Japan.

The race was scheduled for April but was cancelled as a result of the devastating tsunami and the results will count towards next year’s series.

Jenkins and fellow British athlete Lucy Hall led out of the swim and held onto their supremacy in the early stages on the bike before being caught.

New Zealander Andrea Hewitt, the winner in Beijing, pushed the pace from the start and Jenkins’ performance petered out as she missed out on a medal.

The 27-year-old said: “It was a tough day with very hot and humid conditions. I had a great swim with Lucy and we had a gap but got caught.

“I felt like I ran well for five kilometres and moved into second place, but the heat got to me and I ended up sixth. It’s a solid result after everything last weekend.”

Vicky Holland finished 12th, while Jodie Stimpson was 18th, Kerry Lang 36th, Non Stanford 38th, Lois Rosindale 41st. Hall did not finish.

In the men’s race, former steeplechaser Adam Bowden finished seventh, ahead of Tim Don.

Portugal’s Joao Silva won the race.