American soccer writing, history & data.
| League | Abbreviation | Years |
|---|---|---|
| Madison Municipal Soccer League | MadMSL | 1934-1934 |
| Major Arena Soccer League | MASL | 2014-present |
| Major Indoor Soccer League | MISL | 2001-2008 |
| Major Indoor Soccer League | MISL | 2009-2014 |
| Major League Soccer | MLS | 1996-present |
| Major Soccer League | MSL | 1978-1992 |
| Men's Premier Soccer League | MPSL | 2003-2004 |
| Metropolitan Association Football League | MetroAFL | 1905-1907 |
| Milwaukee Amateur Soccer League | MilASL | 1925-1925 |
| Milwaukee and District Association Football League | MilDAFL | 1913-1916 |
| Milwaukee Municipal Soccer League | MilMSL | 1920-1948 |
| Milwaukee Municipal Soccer League Indoor League | MilMSL-Indoor | 1943-1948 |