American Katie Ledecky becomes the first female swimmer to win gold at four Olympics with a win in the 1,500-metre freestyle at the Paris Games. Among men, only her compatriots Michael Phelps and Ryan Lochte have achieved this milestone. Ledecky added the Paris medal to her collection of one gold at London 2012, four at Rio 2016 and two at Tokyo 2020. Overall, this is her 12th Olympic medal. In Paris, she had already claimed 400m freestyle bronze. Ledecky, widely considered the greatest female distance swimmer of all time, clocked a new Olympic record of 15 minutes 30.02 seconds, improving her…