Ten kilometres—decided by 0.2 seconds
David Betlehem won the World Cup final in Setúbal after 10,000 metres by just two tenths of a second and secured the overall title as well.
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16 degrees: Why the lower limit in open water has now been studied scientifically
World Aquatics supports its 16 °C minimum temperature with new research—even though trained elite swimmers tolerated even colder water in some tests.
How hot is too hot? Open water looks for an upper temperature limit
After cold water, heat is moving into focus: in 2026 World Aquatics specifically commissioned research to better determine safe maximum temperatures for long open-water races.
An unbeaten season: Moesha Johnson wins every individual race
Australia's Moesha Johnson achieved something extraordinary in 2026: she won every individual women's race of the entire Open Water World Cup.
Open water is becoming more tactical: Why positioning is now almost as important as endurance
Olympic champion Ferry Weertman describes how open-water swimming has changed—from long endurance duels to a highly precise positioning game with knockout sprints.
Open Water World Cup 2026: Four stops
The 2026 Open Water Swimming World Cup takes the world's best swimmers through four very different bodies of water.
Setúbal: Open water in its purest form
Setúbal is one of the most traditional venues in international open-water swimming.
Seasonal development in elite open-water swimmers
A new study examines in detail for the first time how key performance parameters in elite open-water swimmers change over the course of a season.