Great Britain's Paralympic blind sprinter Tracey Hinton will not contest for a medal in the women's T11 100m final after finishing third in her heat.
The 42-year-old, who lost her sight at the age of four, had a slow start out of the blocks with her guide Steffan Hughes and was unable to close down her opponents in the Olympic Stadium.
Brazil's Terezinha Guilhermina, who has been an early favourite for gold at the London Games, managed to set a new Paralympic record after storming to the finish line in 12.23s.
Despite failing to make the final, Hinton recorded a seasonal best time of 13.43s.
