Alex Lee missed out on qualification for the men's 200 metres T64 final in the World Para-Athletics Championships in Dubai.
The Galway athlete finished in fifth place in his heat.
However, he made history by becoming the country's first ever blade runner to compete at the championships.
This is what it's all about!!! @10Alexlee full family has made the long trip to Dublin bail to support him at his first World Championships! 30 mins to go before his 200m heat. See him race live on https://t.co/61U3Rc9rhz pic.twitter.com/aTeJM2je0l— Paralympics Ireland (@ParalympicsIRE) November 8, 2019
Lee ran a time of 25:22 which was just 3/10s of a second off his best ever time in the event.
The former League of Ireland football, who only began his para athletics career just 18 months ago, was competing in his first ever major championships.
He said: "Every time I step on the track, whether it's somewhere like here or up in Dangan in Galway I learn something new.
"I am new to the sport so every time I step out whether it’s training, gym, track I try and learn something and bring it forward into the next session or next race."
Lee returns to competition on Sunday when he competes in the 100m heats.
Orla Barry will be the next Irish competitor in action when she competes tomorrow in the discus.
The European champion is expected in action at 2.43pm Irish time in an event where she is ranked fourth in the field for this season.