The 27-year-old, who won a record four Olympic gold medals at Tokyo 2020, stopped the clock in 23.53 to top an all Australian podium that features Madi Wilson and Holly Barratt in second and third place respectively. Australia's Chalmers wins gold in Men's 100m FreestyleĬhalmers' compatriot Emma McKeon bounced back from a rare defeat in Doha to land her third women's 50m free title of the season.