Ireland's Joanne Cuddihy qualified for the semi-finals of the 400 metres at the London Olympics as a fastest loser.
The 28-year-old finished fourth in her heat in 52.09 seconds, but it proved enough to progress.
Cuddihy was still not impressed with her run, though.
"The crowd was electric, the best I've ever experienced," she said. "I think I let the occasion get to me.
"I went out fast - that was the plan - and it was only when I got in the home straight that I realised I didn't have the legs for the finish."