Libby Clegg, the partially-sighted sprinter who grew-up in Newcastleton, smashed a world record but still came third overall in the heats.
In a crazy day on the track, Clegg and her guide finished her T12 100m sprint in 12.17 seconds, which broke the world record.
But in the two following heats her new world record was broken once - and then twice.
It meant that Clegg held the world record for a matter of minutes before losing it to her Chinese rivals.
Clegg's performance means she has qualified for the semi-final in the 100m, which takes place this evening. She will be hoping to move forward into the final tomorrow.
Clegg, who has a deteriorating eye condition called Stargardt's disease, runs with guide Mikhail Huggins who speaks to her during the sprint so that she stays on course.