Smash Back Room
From SmashWiki, the Super Smash Bros. wiki
The Smash Back Room (formerly the Melee Back Room; also known as the SBR) is a protected forum on SmashBoards. Only members that have shown considerable knowledge or skill (either by posting intelligently or by tournament placement) are permitted to read and discuss in this forum. The Smash Back Room is most famous for producing a tier list every year or so.
