Minna Atherton became the first woman under 55 seconds in the 100m backstroke as London Roar won again in the International Swimming League. The 19-year-old Australian, who won the 200m and 50m backstrokes on Saturday, recorded a time 54.89 seconds to set the first World Record in ISL history.

Atherton, who won silver at the World Championships in South Korea this year in a time of 58.85, said of her new record: “It’s amazing I can’t really believe it yet. I just gave it a red-hot crack.”