In July 2021, he represented South Korea at the 2020 Summer Olympics held in Tokyo, Japan. He competed in the 100m backstroke and 200m backstroke. In the 100m backstroke heats, he did not advance to compete in the semifinal. In the 200m backstroke heats event, he completed at rank 2, allowing him to advance to compete in the semifinal. In the 200m backstroke semifinal event, he completed at rank 11, missing out to compete in the final.