The Athletes Unlimited Softball League is the premier professional women's softball league in the United States.

There are four teams, that compete against each other in 24 game season ending with a championship (best 2 out of 3).

In addition the AUSL All-Star Cup – a four-week season where 60 professional softball players compete utilizing Athletes Unlimited’s innovative format, will take place in Rosemont, IL, Raleigh and Greenville, NC.