The year is divided into four swim seasons (Fall, Winter, Spring and Summer) each lasting about 2-3 months. Over the course of each season (except Spring) 5 dual meets are held with clubs of comparable size, culminating in a large  championship event with all clubs in the league. Each season is self contained and swimmers can choose to swim in as many seasons as they wish.  However, in order to swim in the championships for that season they must swim in at least two dual meets(you only have to compete in one dual meet in Fall and Winter Sessions to be eligible for championships--two in the Summer Session).

Swimmers are grouped by age and sex for competition depending on their age at the start of a swim season. Age groups include:

  • 8 & under
  • 9 & 10
  • 11 & 12
  • 13 & 14
  • 15 & up

During the Fall and Winter seasons the Milan club competes in the Southern Michigan Swim League with clubs from:

  • Brighton
  • Chelsea
  • Erie Mason
  • Dundee
  • Pinckney
  • Tecumseh
  • Ypsilanti

During the Summer season the club competes in the Washtenaw Inter Swim Club league with 16 or so summer swim clubs from around Washtenaw County.