The Independent Soccer League (ISL) is a girls-only league for sports competition even though some member schools are coeducational.

The ISL competes in two divisions, "A" and "AA," with end of season tournaments in each division.  Teams may be relegated between divisions in each sport.

Rules are under the Referee Tab

CSOA provides officials for three Division A schools

Episcopal Maroon

Flint Hill Huskies

Madeira Snails

Here are the other five Division A schools

Bullis Bulldogs

Holy Child Tigers

National Cathedral Eagles

St Andrews Eagles

CSOA provides officials for two schools in Divisionn AA

Potomac Panthers

St Stephens/St Agnes Saints

Here are the other 6 schools in Division AA

Georgetown Day

Maret

Georgetown Visitation

Holton Arms

Sidwell Friends

Stone Ridge