The swimming competition Hadria has three distinctive races, that can be made in four, three or two days.

Hadria (from 2 to 4 days), Hadria Magellano (from 2 to 4 days) e Hadria Young (2 days).

the main characteristics of the above mention races are as follows:

- Hadria: from 2 to 4 races with a variable distance between 2 and 4 km

- Hadria Magellano: from 2 to 4 races with a fix distance equals to the nautical mile that is 1.852 m

- Hadria Young: to races with a fix distance of 400 m

the rank of the three competitions is drawn up based on the sum of the times of the single-race that the athletes have completed and that are expected (4 for Hadria and Hadria Magellano, 2 for Hadria Young).

the athletes can participate only to one of the competitions.