 | |
| Sport | Indoor soccer |
|---|---|
| Founded | 2008 |
| Most recent champion(s) | Metro Louisville FC (2021-22) |
| Most titles | San Diego Sockers (3) |
| Related competitions | MASL, PASL |
| Official website | U.S. Open Championship |
The United States Open for Arena Soccer is a cup-style tournament for all Major Arena Soccer League, MASL2, MASL3 and Premier Arena Soccer League teams. Established in 2008, the PASL announced they would hold the first tournament for indoor soccer open to all leagues and/or existing teams.[1]