Swimming at the World Aquatics Championships

The number of events competed for at each edition of the championships has grown steadily through the years.

The youngest male swimmer to participate in the World Swimming Championships was Ahnt Khaung Htut[1] from Myanmar, who was 12 years old in 2015.

The youngest female swimmer to participate in the World Swimming Championships was 10-year-old Alzain Tareq[2] from Bahrain in 2015.

A select number of athletes have won medals at both long course and open water events, including Oussama Mellouli from Tunisia, Hayley Lewis from Australia, Gregorio Paltrinieri from Italy, Florian Wellbrock from Germany, and Sharon van Rouwendaal from the Netherlands.

* including one medal in the relay event in which this swimmer participated in the heats only ** including two medals in the relay events in which this swimmer participated in the heats only The World Championships have often been the occasion at which elite swimmers reach the peak of their season, and hence numerous world records are often broken.