Natalia Molchanova is the world's most titlist freediver ever, with a total of 42 world records. She won 22 individual gold medals and 2 team gold medals at Freediving World Championships.

Alexey Molchanov is the deepest man in the history of the competitive freediving. He achieved his first world record in 2008 in a pool discipline called Dynamic Apnea, in which he swam 250m underwater with a monofin on one breath. Since then he focused on the depth discipline and began to compete in the open ocean.