American soccer writing, history & data.
| League | Abbreviation | Years |
|---|---|---|
| California Football League | CFL | 1903-1921 |
| Canadian Major Indoor Soccer League | CMISL | 2007-2012 |
| Canadian National Soccer League | CNSL | 1993-1997 |
| Canadian Premier Soccer League | CPSL | 1998-1998 |
| Canadian Professional Soccer League | CPSL | 1983-1983 |
| Canadian Professional Soccer League | CPSL | 1999-2005 |
| Canadian Soccer League | CSL | 1987-1992 |
| Canadian Soccer League | CSL | 2006-present |
| Central Wisconsin Soccer Football League | CWSFL | 1937-1938 |
| Continental Indoor Soccer League | CISL | 1993-1997 |