The competition is divided by gender and one-year age groups and in age-appropriate distances for swimming, biking and running (in that order). Children 6 to 8 are classified as Juniors. 9 to 11 year old kids are classified as intermediate. The senior group is classified as 12 to 15. The junior group competes in a 50-yard swim, a 2-mile bike ride and a 500-yard run. The intermediate age group goes on a 150-yard swim, a 4-mile bike ride and a 1-mile run. The senior group races on a 300-yard swim, an 8-mile bike ride and a 2-mile run.