Created in 1988, the competition gathers the best swimmers in a series of meets organised between August and November each year.

Normally across seven to nine locations, the circuit is structured in clusters and distributes a total of prize money reaching over  US$ 2.5 million.

A revised format for the 30th edition of the Swimming World Cup will be tested. The seven-leg competition will integrate meets held in 25m-pool as well as meets in 50m­-pool, with the main objective to increase the level of participation.

As per usual, the 2018 circuit will be divided into three Clusters, including two legs in the first two stages and three in the final Cluster. The World Cup distributes a total of prize money reaching over US$ 2.5 million equally awarded between the genders.

The first two meets will be held in a 50m -pool, with a total of 32 individual events and 2 relays.

The second and the third Clusters however will be raced in 25m-­pools and comprise of 34 individual events and 2 relays.

All meets will run across three days and swimmers are allowed to swim an unlimited number of individual events, however only the best 3 results will count toward the ranking/scoring.