Darragh Greene managed to go inside the Tokyo 2020 Olympic qualification time at the FINA World Championships in South Korea on Sunday.
The Longford man also set a new Irish record for the 100 metre breaststroke, coming home in a time of 59.82 seconds to qualify for next year's games.
It wasn't enough for a place in the semi-final, as Greene missed out by seven hundredths of a second.
"Bit of mixed feelings with the result, but I can’t complain," said Greene afterwards.
"I stood up, did the job, got my pre-validation for the Olympic Games in Tokyo. So to do that first day of the competition, yeah I’m happy."
Greene will be back in action on Tuesday in the 50m Breaststroke Heats.
WORLD CHAMPIONSHIPS— Swim Ireland (@swimireland) July 21, 2019
Super job from @GreeneDarragh in the 100m Breaststroke. Pre-Validation for #Tokyo2020 in a new IRISH SENIOR RECORD of 59.82, he just misses the SF by .07 in 17th place.
Listen: https://t.co/Yhnyne7Mg3#FINAGwangju2019 #teamarenaIRL pic.twitter.com/VrSBPb1T0k