The Quidditch World Cup 1974 tournament is better known as the “Royston Idlewind and the Dissimulators” World Cup.
The entire tournament was played in a feverish and heightened atmosphere, following a controversial wand ban brought in by Idlewind (QWC).
However, in the competition between the wizarding crowd and Royston Idlewind, the loser was Idlewind (QWC).
Idlewind made the mistake of underestimating the ingenuity of Witches and Wizards affected by an unpopular rule. It must have been a hilarious spectacle.
Lexicon timeline of Quidditch
Lexicon list of World Quidditch teams
From the Web
WizardingWorld.com (Pottermore) features:
Writing by J K Rowling on Imgur (Daily Prophet coverage of the 2014 Quidditch World Cup, originally from Pottermore):
Harry Potter Wiki: Quidditch World Cup