Disappointment for Christine Ohuruogo after fourth-place in 400m in Lausanne
Christine Ohuruogo could not match her Diamond League win in Birmingham as she finished fourth in the 400m in Lausanne.
Last Updated: 04/07/13 10:44pm
The London 2012 silver medalist left herself far too much to do in the final straight and crossed the line in 51.03 seconds behind Francena McCorory, who won in 50.36s, Amantle Montsho and Novlene Williams-Mills.
"It wasn't a good race and was a bit scrappy. I didn't have enough commitment going into the back straight," said Ohuruogu.
"I expected a bit more from myself. I don't have an excuse really."
Meanwhile, American sprinter Tyson Gay demonstrated his return to form with victory in the 100m with a time of 9.79secs, comfortably beating Jamaica's Asafa Powell, who was second with a season's best of 9.88secs.
American Michael Rodgers completed the top three in 9.96s with fourth-placed Kim Collins also finishing sub-10 seconds.
In the other events with British interest, Shara Proctor finished third in the long jump with a season's best leap of 6.92m, but there was no joy for Olympic high jump bronze medallist Robbie Grabarz, who failed all three attempts at 2.27m to finish eighth.
Steve Lewis retired from the pole vault after he failed to clear his first and only attempt at 5.52m, with Greece's Konstantinos Filippidis winning after he went clear on his first attempt at 5.62m.
Tiffany Porter finished fifth in the women's 100m with a time of 12.65secs after fading in the closing stages but she is confident heading into next month's World Championships in Moscow.
"It's going in the right direction. Every race is getting better and I've got to stay positive and trust in my programme," she said.
"I have a new coach and we've changed a lot this year and now we have to put it together when it matters.
"I get out really well but tend to fade but we're working on that."
