A great tool for adding beautiful & modern sports brackets to your WordPress website.
Builds and manages tournament brackets. Displays tournament brackets (knockout rounds), and tables of games (fixtures).
Integrates Challonge, a handy bracket generator, into WordPress.
BracketPress is a free WordPress plugin which enables site owners to run their own Division One NCAA
Manages multiple sports leagues and seasons. Displays league schedules and standings.
SportsPress is an extendable all-in-one sports data plugin that helps sports clubs set up and manage a league or club site quickly and easily.
Self hosted prediction league for your blog
The ChessOnline plugin allows you to display a chessboard and to set up positions (using the FEN). You can also use it as a PGN viewer (experimental).
Adds a sidebar widget that outputs content like team logo, group standings, record, goal count, points and upcoming schedule.