Supplementary football league
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A supplementary football league is an association football competition set up by clubs which are already members of more senior leagues to give the clubs a larger fixture list and fill in "spare" Saturdays which were not being used for cup-ties or league games.
Supplementary leagues in Scotland
A number of supplementary leagues were created in the early days of organised football in Scotland by Scottish Football League clubs as, with only 10-member clubs each playing just 18 games per season, there were plenty of spare Saturdays to fill. The gradual expansion of the Scottish League after 1900 eventually killed these off.
- Edinburgh / East of Scotland Football League
- Glasgow Football League
- Glasgow and West of Scotland Football League
- Inter City Football League
- Inter City Midweek Football League
- Inter County Football League
- Lanarkshire Football League
- Renfrewshire Football League
- Scottish County Football League