O'Callaghan, who beat McKeon's time of 52.67 seconds to win the gold at the world championships in Budapest last year
Miguel de Lara also improved upon his five-year-old national record in the 50 breasts, finishing with a time of 27.55
Aryan Nehra booked his berth in the Indian Swimming squad for the Asian Games 2022 to be held in Hangzhou, China.
In addition to the 100-meter and 200-meter butterfly races, Regan Smith will take part in all three backstroke competitions.
David Popovici competed included the 50-meter butterfly, 50-meter freestyle, 100-meter backstroke, and 400-meter freestyle
The event will be held at the new aquatic center in Fukuoka, a southwestern coastal city of Japan, from July 14 to July 30, 2023.
The young man was recognized for his accomplishment by the Marathon Swimmers Federation and the World Open Waters Swimming Association
At the 2023 Canadian Swimming Trials, Canadian swimmer Summer McIntosh once again surpassed the world record, this time in the 400-meter individual medley.
Summer McIntosh is one of the most talented swimmers currently in the world.
Summer McIntosh is one of the prominent rising stars in the swimming community. At just the age of 16, she has two world records under her name. She achieved the same during the Ca...