[1] Internationally, the sport is contested at the FIS Freestyle World Ski Championships, and at the Winter Olympic Games.

Moguls are a series of bumps on a piste formed when skiers push snow into mounds as they do sharp turns.

Once formed, a naturally occurring mogul tends to grow as skiers follow similar paths around it, further deepening the surrounding grooves known as troughs.

Since skiing tends to be a series of linked turns, moguls form together to create a bump field.

Athletes can perform upright or inverted tricks off these jumps in the course of a competition run.